diff --git a/.codeception/_support/IntegrationTester.php b/.codeception/_support/IntegrationTester.php
deleted file mode 100644
index c6439c85..00000000
--- a/.codeception/_support/IntegrationTester.php
+++ /dev/null
@@ -1,35 +0,0 @@
-<?php
-/**
- * Actor for acceptance tests
- *
- * @since   {VERSION}
- * @link    {URL}
- * @license GPLv2 or later
- * @package PluginName
- * @author  {AUTHOR}
- */
-
-use Codeception\Actor;
-
-
-/**
- * Inherited Methods
- *
- * @since {VERSION}
- *
- * @method void wantToTest( $text )
- * @method void wantTo( $text )
- * @method void execute( $callable )
- * @method void expectTo( $prediction )
- * @method void expect( $prediction )
- * @method void amGoingTo( $argumentation )
- * @method void am( $role )
- * @method void lookForwardTo( $achieveValue )
- * @method void comment( $description )
- * @method void pause()
- *
- * @SuppressWarnings(PHPMD)
- */
-class IntegrationTester extends Actor {
-
-}
diff --git a/.tests/js/assets-js-files/ncaptcha-nf.test.js b/.tests/js/assets-js-files/ncaptcha-nf.test.js
index ee2414cd..3a2fbdd6 100644
--- a/.tests/js/assets-js-files/ncaptcha-nf.test.js
+++ b/.tests/js/assets-js-files/ncaptcha-nf.test.js
@@ -2,14 +2,20 @@
 
 /* global Backbone */
 
+import $ from 'jquery';
+
+global.jQuery = $;
+global.$ = $;
+
 import '../__mocks__/backboneMarionette';
 import '../__mocks__/backboneRadio';
-import '../../../assets/js/hcaptcha-nf';
 
 describe( 'Ninja Forms hCaptcha', () => {
 	let controller;
 
 	beforeEach( () => {
+		require( '../../../assets/js/hcaptcha-nf.js' );
+
 		// Execute DOMContentLoaded event
 		document.dispatchEvent( new Event( 'DOMContentLoaded' ) );
 		controller = window.hCaptchaFieldController;
diff --git a/.tests/php/integration/AMainTest.php b/.tests/php/integration/AMainTest.php
index 4a66d06b..fb28d2af 100644
--- a/.tests/php/integration/AMainTest.php
+++ b/.tests/php/integration/AMainTest.php
@@ -33,6 +33,7 @@
 use HCaptcha\WP\Login;
 use HCaptcha\WP\LostPassword;
 use HCaptcha\WP\Register;
+use HCaptcha\WPDiscuz\Subscribe;
 use Mockery;
 use ReflectionException;
 use stdClass;
@@ -495,6 +496,9 @@ public function test_print_inline_styles() {
 		$url = HCAPTCHA_URL . '/assets/images/hcaptcha-div-logo.svg';
 
 		$expected = '		<style>
+			#wpdiscuz-subscribe-form .h-captcha {
+				margin-left: auto;
+			}
 			div.wpforms-container-full .wpforms-form .h-captcha,
 			#wpforo #wpforo-wrap div .h-captcha,
 			.h-captcha {
@@ -1008,222 +1012,282 @@ static function () use ( $template ) {
 	 */
 	public function dp_test_load_modules() {
 		$modules = [
-			'Comment Form'                 => [
+			'Comment Form'                      => [
 				[ 'wp_status', 'comment' ],
 				'',
 				Comment::class,
 			],
-			'Login Form'                   => [
+			'Login Form'                        => [
 				[ 'wp_status', 'login' ],
 				'',
 				Login::class,
 			],
-			'Lost Password Form'           => [
+			'Lost Password Form'                => [
 				[ 'wp_status', 'lost_pass' ],
 				'',
 				LostPassword::class,
 			],
-			'Register Form'                => [
+			'Register Form'                     => [
 				[ 'wp_status', 'register' ],
 				'',
 				Register::class,
 			],
-			'Asgaros Form'                 => [
+			'Asgaros Form'                      => [
 				[ 'asgaros_status', 'form' ],
 				'asgaros-forum/asgaros-forum.php',
 				\HCaptcha\Asgaros\Form::class,
 			],
-			'Avada Form'                   => [
+			'Avada Form'                        => [
 				[ 'avada_status', 'form' ],
 				'Avada',
 				[ \HCaptcha\Avada\Form::class ],
 			],
-			'bbPress New Topic'            => [
+			'bbPress New Topic'                 => [
 				[ 'bbp_status', 'new_topic' ],
 				'bbpress/bbpress.php',
 				NewTopic::class,
 			],
-			'bbPress Reply'                => [
+			'bbPress Reply'                     => [
 				[ 'bbp_status', 'reply' ],
 				'bbpress/bbpress.php',
 				Reply::class,
 			],
-			'Beaver Builder Contact Form'  => [
+			'Beaver Builder Contact Form'       => [
 				[ 'beaver_builder_status', 'contact' ],
 				'bb-plugin/fl-builder.php',
 				\HCaptcha\BeaverBuilder\Contact::class,
 			],
-			'Beaver Builder Login Form'    => [
+			'Beaver Builder Login Form'         => [
 				[ 'beaver_builder_status', 'login' ],
 				'bb-plugin/fl-builder.php',
 				[ \HCaptcha\BeaverBuilder\Login::class, Login::class ],
 			],
-			'Brizy Form'                   => [
+			'Brizy Form'                        => [
 				[ 'brizy_status', 'form' ],
 				'brizy/brizy.php',
 				[ \HCaptcha\Brizy\Form::class ],
 			],
-			'BuddyPress Create Group'      => [
+			'BuddyPress Create Group'           => [
 				[ 'bp_status', 'create_group' ],
 				'buddypress/bp-loader.php',
 				CreateGroup::class,
 			],
-			'BuddyPress Register'          => [
+			'BuddyPress Register'               => [
 				[ 'bp_status', 'registration' ],
 				'buddypress/bp-loader.php',
 				\HCaptcha\BuddyPress\Register::class,
 			],
-			'Contact Form 7'               => [
+			'Classified Listing Contact'        => [
+				[ 'classified_listing_status', 'contact' ],
+				'classified-listing/classified-listing.php',
+				\HCaptcha\ClassifiedListing\Contact::class,
+			],
+			'Classified Listing Login'          => [
+				[ 'classified_listing_status', 'login' ],
+				'classified-listing/classified-listing.php',
+				\HCaptcha\ClassifiedListing\Login::class,
+			],
+			'Classified Listing Lost Password'  => [
+				[ 'classified_listing_status', 'lost_pass' ],
+				'classified-listing/classified-listing.php',
+				\HCaptcha\ClassifiedListing\LostPassword::class,
+			],
+			'Classified Listing Register'       => [
+				[ 'classified_listing_status', 'register' ],
+				'classified-listing/classified-listing.php',
+				\HCaptcha\ClassifiedListing\Register::class,
+			],
+			'Colorlib Customizer Login'         => [
+				[ 'colorlib_customizer_status', 'login' ],
+				'colorlib-login-customizer/colorlib-login-customizer.php',
+				\HCaptcha\ColorlibCustomizer\Login::class,
+			],
+			'Colorlib Customizer Lost Password' => [
+				[ 'colorlib_customizer_status', 'lost_pass' ],
+				'colorlib-login-customizer/colorlib-login-customizer.php',
+				\HCaptcha\ColorlibCustomizer\LostPassword::class,
+			],
+			'Colorlib Customizer Register'      => [
+				[ 'colorlib_customizer_status', 'register' ],
+				'colorlib-login-customizer/colorlib-login-customizer.php',
+				\HCaptcha\ColorlibCustomizer\Register::class,
+			],
+			'Contact Form 7'                    => [
 				[ 'cf7_status', 'form' ],
 				'contact-form-7/wp-contact-form-7.php',
 				CF7::class,
 			],
-			'Divi Comment Form'            => [
+			'Divi Comment Form'                 => [
 				[ 'divi_status', 'comment' ],
 				'Divi',
 				[ \HCaptcha\Divi\Comment::class, Comment::class ],
 			],
-			'Divi Contact Form'            => [
+			'Divi Contact Form'                 => [
 				[ 'divi_status', 'contact' ],
 				'Divi',
 				Contact::class,
 			],
-			'Divi Email Optin Form'        => [
+			'Divi Email Optin Form'             => [
 				[ 'divi_status', 'email_optin' ],
 				'Divi',
 				EmailOptin::class,
 			],
-			'Divi Login Form'              => [
+			'Divi Login Form'                   => [
 				[ 'divi_status', 'login' ],
 				'Divi',
 				\HCaptcha\Divi\Login::class,
 			],
-			'Elementor Pro Form'           => [
+			'Elementor Pro Form'                => [
 				[ 'elementor_pro_status', 'form' ],
 				'elementor-pro/elementor-pro.php',
 				HCaptchaHandler::class,
 			],
-			'Fluent Forms'                 => [
+			'Fluent Forms'                      => [
 				[ 'fluent_status', 'form' ],
 				'fluentform/fluentform.php',
 				Form::class,
 			],
-			'Forminator'                   => [
+			'Formidable Forms'                  => [
+				[ 'formidable_forms_status', 'form' ],
+				'formidable/formidable.php',
+				\HCaptcha\FormidableForms\Form::class,
+			],
+			'Forminator'                        => [
 				[ 'forminator_status', 'form' ],
 				'forminator/forminator.php',
 				\HCaptcha\Forminator\Form::class,
 			],
-			'GiveWP'                       => [
+			'GiveWP'                            => [
 				[ 'give_wp_status', 'form' ],
 				'give/give.php',
 				\HCaptcha\GiveWP\Form::class,
 			],
-			'Gravity Forms'                => [
+			'Gravity Forms'                     => [
 				[ 'gravity_status', 'form' ],
 				'gravityforms/gravityforms.php',
 				\HCaptcha\GravityForms\Form::class,
 			],
-			'Jetpack'                      => [
+			'Jetpack'                           => [
 				[ 'jetpack_status', 'contact' ],
 				'jetpack/jetpack.php',
 				JetpackForm::class,
 			],
-			'MailChimp'                    => [
+			'MailChimp'                         => [
 				[ 'mailchimp_status', 'form' ],
 				'mailchimp-for-wp/mailchimp-for-wp.php',
 				\HCaptcha\Mailchimp\Form::class,
 			],
-			'MemberPress Login'            => [
+			'MemberPress Login'                 => [
 				[ 'memberpress_status', 'login' ],
 				'memberpress/memberpress.php',
 				[ \HCaptcha\MemberPress\Login::class, Login::class ],
 			],
-			'MemberPress Register'         => [
+			'MemberPress Register'              => [
 				[ 'memberpress_status', 'register' ],
 				'memberpress/memberpress.php',
 				\HCaptcha\MemberPress\Register::class,
 			],
-			'Ninja Forms'                  => [
+			'Ninja Forms'                       => [
 				[ 'ninja_status', 'form' ],
 				'ninja-forms/ninja-forms.php',
 				NF::class,
 			],
-			'Quform'                       => [
+			'Paid Memberships Pro Checkout'     => [
+				[ 'paid_memberships_pro_status', 'checkout' ],
+				'paid-memberships-pro/paid-memberships-pro.php',
+				\HCaptcha\PaidMembershipsPro\Checkout::class,
+			],
+			'Paid Memberships Pro Login'        => [
+				[ 'paid_memberships_pro_status', 'login' ],
+				'paid-memberships-pro/paid-memberships-pro.php',
+				\HCaptcha\PaidMembershipsPro\Login::class,
+			],
+			'Quform'                            => [
 				[ 'quform_status', 'form' ],
 				'quform/quform.php',
 				Quform::class,
 			],
-			'Subscriber'                   => [
+			'Subscriber'                        => [
 				[ 'subscriber_status', 'form' ],
 				'subscriber/subscriber.php',
 				\HCaptcha\Subscriber\Form::class,
 			],
-			'Support Candy Form'           => [
+			'Support Candy Form'                => [
 				[ 'supportcandy_status', 'form' ],
 				'supportcandy/supportcandy.php',
 				\HCaptcha\SupportCandy\Form::class,
 			],
-			'Ultimate Member Login'        => [
+			'Ultimate Member Login'             => [
 				[ 'ultimate_member_status', 'login' ],
 				'ultimate-member/ultimate-member.php',
 				\HCaptcha\UM\Login::class,
 			],
-			'Ultimate Member LostPassword' => [
+			'Ultimate Member LostPassword'      => [
 				[ 'ultimate_member_status', 'lost_pass' ],
 				'ultimate-member/ultimate-member.php',
 				\HCaptcha\UM\LostPassword::class,
 			],
-			'Ultimate Member Register'     => [
+			'Ultimate Member Register'          => [
 				[ 'ultimate_member_status', 'register' ],
 				'ultimate-member/ultimate-member.php',
 				\HCaptcha\UM\Register::class,
 			],
-			'WooCommerce Checkout'         => [
+			'WooCommerce Checkout'              => [
 				[ 'woocommerce_status', 'checkout' ],
 				'woocommerce/woocommerce.php',
 				Checkout::class,
 			],
-			'WooCommerce Login'            => [
+			'WooCommerce Login'                 => [
 				[ 'woocommerce_status', 'login' ],
 				'woocommerce/woocommerce.php',
 				\HCaptcha\WC\Login::class,
 			],
-			'WooCommerce Lost Password'    => [
+			'WooCommerce Lost Password'         => [
 				[ 'woocommerce_status', 'lost_pass' ],
 				'woocommerce/woocommerce.php',
 				[ LostPassword::class, \HCaptcha\WC\LostPassword::class ],
 			],
-			'WooCommerce Order Tracking'   => [
+			'WooCommerce Order Tracking'        => [
 				[ 'woocommerce_status', 'order_tracking' ],
 				'woocommerce/woocommerce.php',
 				OrderTracking::class,
 			],
-			'WooCommerce Register'         => [
+			'WooCommerce Register'              => [
 				[ 'woocommerce_status', 'register' ],
 				'woocommerce/woocommerce.php',
 				\HCaptcha\WC\Register::class,
 			],
-			'WooCommerce Wishlists'        => [
+			'WooCommerce Wishlists'             => [
 				[ 'woocommerce_wishlists_status', 'create_list' ],
 				'woocommerce-wishlists/woocommerce-wishlists.php',
 				CreateList::class,
 			],
-			'WPForms Lite'                 => [
+			'WPForms Lite'                      => [
 				[ 'wpforms_status', 'lite' ],
 				'wpforms-lite/wpforms.php',
 				\HCaptcha\WPForms\Form::class,
 			],
-			'WPForms Pro'                  => [
+			'WPForms Pro'                       => [
 				[ 'wpforms_status', 'pro' ],
 				'wpforms/wpforms.php',
 				\HCaptcha\WPForms\Form::class,
 			],
-			'wpForo New Topic'             => [
+			'wpDiscuz Comment'                  => [
+				[ 'wpdiscuz_status', 'comment_form' ],
+				'wpdiscuz/class.WpdiscuzCore.php',
+				\HCaptcha\WPDiscuz\Comment::class,
+			],
+			'wpDiscuz Subscribe'                => [
+				[ 'wpdiscuz_status', 'subscribe_form' ],
+				'wpdiscuz/class.WpdiscuzCore.php',
+				Subscribe::class,
+			],
+			'wpForo New Topic'                  => [
 				[ 'wpforo_status', 'new_topic' ],
 				'wpforo/wpforo.php',
 				\HCaptcha\WPForo\NewTopic::class,
 			],
-			'wpForo Reply'                 => [
+			'wpForo Reply'                      => [
 				[ 'wpforo_status', 'reply' ],
 				'wpforo/wpforo.php',
 				\HCaptcha\WPForo\Reply::class,
diff --git a/.tests/php/integration/Jetpack/JetpackBaseTest.php b/.tests/php/integration/Jetpack/JetpackBaseTest.php
index c28abb3a..eec037fa 100644
--- a/.tests/php/integration/Jetpack/JetpackBaseTest.php
+++ b/.tests/php/integration/Jetpack/JetpackBaseTest.php
@@ -26,11 +26,11 @@ public function test_init_hooks() {
 
 		self::assertSame(
 			10,
-			has_filter( 'the_content', [ $subject, 'jetpack_form' ] )
+			has_filter( 'the_content', [ $subject, 'add_captcha' ] )
 		);
 		self::assertSame(
 			0,
-			has_filter( 'widget_text', [ $subject, 'jetpack_form' ] )
+			has_filter( 'widget_text', [ $subject, 'add_captcha' ] )
 		);
 
 		self::assertSame(
@@ -44,7 +44,7 @@ public function test_init_hooks() {
 
 		self::assertSame(
 			100,
-			has_filter( 'jetpack_contact_form_is_spam', [ $subject, 'jetpack_verify' ] )
+			has_filter( 'jetpack_contact_form_is_spam', [ $subject, 'verify' ] )
 		);
 	}
 
@@ -56,8 +56,8 @@ public function test_jetpack_verify() {
 
 		$subject = new JetpackForm();
 
-		self::assertFalse( $subject->jetpack_verify() );
-		self::assertTrue( $subject->jetpack_verify( true ) );
+		self::assertFalse( $subject->verify() );
+		self::assertTrue( $subject->verify( true ) );
 	}
 
 	/**
@@ -70,7 +70,7 @@ public function test_jetpack_verify_not_verified() {
 
 		$subject = new JetpackForm();
 
-		self::assertEquals( $error, $subject->jetpack_verify() );
+		self::assertEquals( $error, $subject->verify() );
 		self::assertSame( 10, has_action( 'hcap_hcaptcha_content', [ $subject, 'error_message' ] ) );
 	}
 }
diff --git a/.tests/php/integration/Jetpack/JetpackFormTest.php b/.tests/php/integration/Jetpack/JetpackFormTest.php
index 1a003d57..8995a721 100644
--- a/.tests/php/integration/Jetpack/JetpackFormTest.php
+++ b/.tests/php/integration/Jetpack/JetpackFormTest.php
@@ -18,52 +18,61 @@
 class JetpackFormTest extends HCaptchaWPTestCase {
 
 	/**
-	 * Test jetpack_form().
+	 * Test add_captcha().
 	 *
 	 * @param string $content  Form content.
 	 * @param string $expected Expected content.
 	 *
-	 * @dataProvider dp_test_jetpack_form
+	 * @dataProvider dp_test_add_captcha
 	 */
-	public function test_jetpack_form( $content, $expected ) {
+	public function test_add_captcha( $content, $expected ) {
 		$subject = new JetpackForm();
 
-		self::assertSame( $expected, $subject->jetpack_form( $content ) );
+		self::assertSame( $expected, $subject->add_captcha( $content ) );
 	}
 
 	/**
-	 * Data provider for test_hcap_hcaptcha_jetpack_form().
+	 * Data provider for test_add_captcha().
 	 *
 	 * @return array
 	 * @noinspection HtmlUnknownAttribute
 	 */
-	public function dp_test_jetpack_form() {
+	public function dp_test_add_captcha() {
 		$_SERVER['REQUEST_URI'] = 'http://test.test/';
 
 		$nonce_field = wp_nonce_field( 'hcaptcha_jetpack', 'hcaptcha_jetpack_nonce', true, false );
 
+		$hcaptcha = '		<div
+			class="h-captcha"
+			data-sitekey=""
+			data-theme=""
+			data-size=""
+						data-auto="false">
+		</div>
+		' . $nonce_field;
+
 		return [
 			'Empty contact form'                 => [ '', '' ],
 			'Classic contact form'               => [
 				'[contact-form] Some contact form [/contact-form]',
-				'[contact-form] Some contact form [hcaptcha]' . $nonce_field . '[/contact-form]',
+				'[contact-form] Some contact form ' . $hcaptcha . '[/contact-form]',
 			],
 			'Classic contact form with hcaptcha' => [
 				'[contact-form] Some contact form [hcaptcha][/contact-form]',
-				'[contact-form] Some contact form [hcaptcha]' . $nonce_field . '[/contact-form]',
+				'[contact-form] Some contact form [hcaptcha][/contact-form]',
 			],
 			'Block contact form'                 => [
 				'<form class="wp-block-jetpack-contact-form" <button type="submit">Contact Us</button></form>',
-				'<form class="wp-block-jetpack-contact-form" [hcaptcha]<button type="submit">Contact Us</button>' . $nonce_field . '</form>',
+				'<form class="wp-block-jetpack-contact-form" ' . $hcaptcha . '<button type="submit">Contact Us</button></form>',
 			],
 			'Block contact form with hcaptcha'   => [
 				'<form class="wp-block-jetpack-contact-form" [hcaptcha]<button type="submit">Contact Us</button></form>',
-				'<form class="wp-block-jetpack-contact-form" [hcaptcha]<button type="submit">Contact Us</button>' . $nonce_field . '</form>',
+				'<form class="wp-block-jetpack-contact-form" [hcaptcha]<button type="submit">Contact Us</button></form>',
 			],
 			'Block contact form and search form' => [
 				'<form class="wp-block-jetpack-contact-form" <button type="submit">Contact Us</button></form>' .
 				'<form class="search-form" <input type="submit" class="search-submit" value="Search"></form>',
-				'<form class="wp-block-jetpack-contact-form" [hcaptcha]<button type="submit">Contact Us</button>' . $nonce_field . '</form>' .
+				'<form class="wp-block-jetpack-contact-form" ' . $hcaptcha . '<button type="submit">Contact Us</button></form>' .
 				'<form class="search-form" <input type="submit" class="search-submit" value="Search"></form>',
 			],
 		];
diff --git a/.tests/php/integration/Mailchimp/FormTest.php b/.tests/php/integration/Mailchimp/FormTest.php
index 5e49e718..9a1ce6d1 100644
--- a/.tests/php/integration/Mailchimp/FormTest.php
+++ b/.tests/php/integration/Mailchimp/FormTest.php
@@ -86,37 +86,46 @@ public function test_add_hcap_error_messages() {
 
 	/**
 	 * Test add_captcha().
+	 *
+	 * @noinspection PhpParamsInspection
 	 */
 	public function test_add_captcha() {
-		$content  = '<input type="submit">';
-		$expected =
+		$content    = '<input type="submit">';
+		$expected   =
 			$this->get_hcap_form() .
 			wp_nonce_field( 'hcaptcha_mailchimp', 'hcaptcha_mailchimp_nonce', true, false ) .
 			'<input type="submit">';
-		$subject  = new Form();
+		$mc4wp_form = (object) [
+			'ID' => 5,
+		];
+		$subject    = new Form();
 
-		self::assertSame( $expected, $subject->add_captcha( $content, '', '' ) );
+		self::assertSame( $expected, $subject->add_captcha( $content, $mc4wp_form, null ) );
 	}
 
 	/**
 	 * Test verify().
+	 *
+	 * @noinspection PhpParamsInspection
 	 */
 	public function test_verify() {
 		$this->prepare_hcaptcha_verify_POST( 'hcaptcha_mailchimp_nonce', 'hcaptcha_mailchimp' );
 
 		$subject = new Form();
 
-		self::assertTrue( $subject->verify( true, [] ) );
+		self::assertSame( [], $subject->verify( [], null ) );
 	}
 
 	/**
 	 * Test verify() not verified.
+	 *
+	 * @noinspection PhpParamsInspection
 	 */
 	public function test_verify_not_verified() {
 		$this->prepare_hcaptcha_verify_POST( 'hcaptcha_mailchimp_nonce', 'hcaptcha_mailchimp', false );
 
 		$subject = new Form();
 
-		self::assertSame( 'fail', $subject->verify( true, [] ) );
+		self::assertSame( [ 'fail' ], $subject->verify( [], null ) );
 	}
 }
diff --git a/.tests/php/integration/NF/NFTest.php b/.tests/php/integration/NF/NFTest.php
index 3f56a058..df99649e 100644
--- a/.tests/php/integration/NF/NFTest.php
+++ b/.tests/php/integration/NF/NFTest.php
@@ -82,17 +82,14 @@ static function ( &$item ) {
 	 * Test localize_field().
 	 */
 	public function test_localize_field() {
-		$field = [ 'some' ];
+		$field = [
+			'id'       => 5,
+			'settings' => [],
+		];
 
 		$hcaptcha_site_key = 'some key';
 		$hcaptcha_theme    = 'some theme';
 		$hcaptcha_size     = 'some size';
-		$nonce             = wp_nonce_field(
-			'hcaptcha_nf',
-			'hcaptcha_nf_nonce',
-			true,
-			false
-		);
 		$uniqid            = 'hcaptcha-nf-625d3b9b318fc0.86180601';
 
 		update_option(
@@ -117,15 +114,19 @@ static function ( $prefix, $more_entropy ) use ( $uniqid ) {
 			}
 		);
 
-		$expected = $field;
-
-		$expected['settings']['hcaptcha_id']          = $uniqid;
-		$expected['settings']['hcaptcha_key']         = $hcaptcha_site_key;
-		$expected['settings']['hcaptcha_theme']       = $hcaptcha_theme;
-		$expected['settings']['hcaptcha_size']        = $hcaptcha_size;
-		$expected['settings']['hcaptcha_nonce_field'] = $nonce;
+		$expected                            = $field;
+		$expected['settings']['hcaptcha_id'] = $uniqid;
+		$expected['settings']['hcaptcha']    = '		<div id="' . $uniqid . '" data-fieldId="5"
+			class="h-captcha"
+			data-sitekey="some key"
+			data-theme="some theme"
+			data-size="some size"
+						data-auto="false">
+		</div>
+		';
 
 		$subject = new NF();
+		$subject->set_form_id( 1 );
 
 		self::assertSame( $expected, $subject->localize_field( $field ) );
 
@@ -141,7 +142,11 @@ static function ( $prefix, $more_entropy ) use ( $uniqid ) {
 
 		hcaptcha()->init_hooks();
 
-		$expected['settings']['hcaptcha_size'] = 'normal';
+		$expected['settings']['hcaptcha'] = str_replace(
+			'some size',
+			'normal',
+			$expected['settings']['hcaptcha']
+		);
 
 		$subject = new NF();
 
diff --git a/.tests/php/integration/WC/LostPasswordTest.php b/.tests/php/integration/WC/LostPasswordTest.php
index 18a47446..982d2a27 100644
--- a/.tests/php/integration/WC/LostPasswordTest.php
+++ b/.tests/php/integration/WC/LostPasswordTest.php
@@ -36,7 +36,7 @@ public function test_constructor_and_init_hooks() {
 	public function test_add_captcha() {
 		$expected =
 			$this->get_hcap_form() .
-			wp_nonce_field( 'hcaptcha_lost_password', 'hcaptcha_lost_password_nonce', true, false );
+			wp_nonce_field( 'hcaptcha_wc_lost_password', 'hcaptcha_wc_lost_password_nonce', true, false );
 
 		$subject = new LostPassword();
 
diff --git a/.tests/php/integration/WP/LostPasswordTest.php b/.tests/php/integration/WP/LostPasswordTest.php
index bff22528..078914fb 100644
--- a/.tests/php/integration/WP/LostPasswordTest.php
+++ b/.tests/php/integration/WP/LostPasswordTest.php
@@ -41,7 +41,7 @@ public function test_constructor_and_init_hooks() {
 	public function test_add_captcha() {
 		$expected =
 			$this->get_hcap_form() .
-			wp_nonce_field( 'hcaptcha_lost_password', 'hcaptcha_lost_password_nonce', true, false );
+			wp_nonce_field( 'hcaptcha_wp_lost_password', 'hcaptcha_wp_lost_password_nonce', true, false );
 
 		$subject = new LostPassword();
 
@@ -57,11 +57,14 @@ public function test_add_captcha() {
 	 */
 	public function test_verify() {
 		$validation_error = new WP_Error( 'some error' );
+		$expected         = $validation_error;
 
-		$this->prepare_hcaptcha_get_verify_message( 'hcaptcha_lost_password_nonce', 'hcaptcha_lost_password' );
+		$this->prepare_hcaptcha_get_verify_message( 'hcaptcha_wp_lost_password_nonce', 'hcaptcha_wp_lost_password' );
 
 		$subject = new LostPassword();
-		self::assertEquals( $validation_error, $subject->verify( $validation_error ) );
+		$subject->verify( $validation_error );
+
+		self::assertEquals( $expected, $validation_error );
 	}
 
 	/**
@@ -69,12 +72,15 @@ public function test_verify() {
 	 */
 	public function test_verify_not_verified() {
 		$validation_error = new WP_Error( 'some error' );
+		$expected         = $validation_error;
 
-		$validation_error->add( 'hcaptcha_error', 'The Captcha is invalid.' );
+		$expected->add( 'hcaptcha_error', 'The Captcha is invalid.' );
 
-		$this->prepare_hcaptcha_get_verify_message_html( 'hcaptcha_lost_password_nonce', 'hcaptcha_lost_password', false );
+		$this->prepare_hcaptcha_get_verify_message_html( 'hcaptcha_wp_lost_password_nonce', 'hcaptcha_wp_lost_password', false );
 
 		$subject = new LostPassword();
-		self::assertEquals( $validation_error, $subject->verify( $validation_error ) );
+		$subject->verify( $validation_error );
+
+		self::assertEquals( $expected, $validation_error );
 	}
 }
diff --git a/.tests/php/integration/WPForms/FormTest.php b/.tests/php/integration/WPForms/FormTest.php
index 311e11d6..665281bf 100644
--- a/.tests/php/integration/WPForms/FormTest.php
+++ b/.tests/php/integration/WPForms/FormTest.php
@@ -26,7 +26,8 @@ class FormTest extends HCaptchaPluginWPTestCase {
 	 * Tests add_captcha().
 	 */
 	public function test_add_captcha() {
-		$expected =
+		$form_data = [ 'id' => 5 ];
+		$expected  =
 			$this->get_hcap_form() .
 			wp_nonce_field(
 				'hcaptcha_wpforms',
@@ -34,11 +35,11 @@ public function test_add_captcha() {
 				true,
 				false
 			);
-		$subject  = new Form();
+		$subject   = new Form();
 
 		ob_start();
 
-		$subject->add_captcha( [] );
+		$subject->add_captcha( $form_data );
 
 		self::assertSame( $expected, ob_get_clean() );
 	}
diff --git a/.tests/php/integration/WPForo/NewTopicTest.php b/.tests/php/integration/WPForo/NewTopicTest.php
index a5006e75..2c47f07e 100644
--- a/.tests/php/integration/WPForo/NewTopicTest.php
+++ b/.tests/php/integration/WPForo/NewTopicTest.php
@@ -61,13 +61,14 @@ public function tearDown(): void {
 	 * Test add_captcha().
 	 */
 	public function test_add_captcha() {
+		$topic    = 2;
 		$nonce    = wp_nonce_field( 'hcaptcha_wpforo_new_topic', 'hcaptcha_wpforo_new_topic_nonce', true, false );
 		$expected = $this->get_hcap_form() . $nonce;
 		$subject  = new NewTopic();
 
 		ob_start();
 
-		$subject->add_captcha();
+		$subject->add_captcha( $topic );
 
 		self::assertSame( $expected, ob_get_clean() );
 	}
diff --git a/.tests/php/integration/WPForo/ReplyTest.php b/.tests/php/integration/WPForo/ReplyTest.php
index 1a6b38ed..e950aa77 100644
--- a/.tests/php/integration/WPForo/ReplyTest.php
+++ b/.tests/php/integration/WPForo/ReplyTest.php
@@ -60,13 +60,18 @@ public function tearDown(): void {
 	 * Test add_captcha().
 	 */
 	public function test_add_captcha() {
+		$topic    = [
+			'forumid'  => 2,
+			'topicid'  => 21,
+			'some key' => 'some value',
+		];
 		$nonce    = wp_nonce_field( 'hcaptcha_wpforo_reply', 'hcaptcha_wpforo_reply_nonce', true, false );
 		$expected = $this->get_hcap_form() . $nonce;
 		$subject  = new Reply();
 
 		ob_start();
 
-		$subject->add_captcha();
+		$subject->add_captcha( $topic );
 
 		self::assertSame( $expected, ob_get_clean() );
 	}
diff --git a/.tests/php/unit/HCaptchaTestCase.php b/.tests/php/unit/HCaptchaTestCase.php
index d6f91f30..bf8f3410 100644
--- a/.tests/php/unit/HCaptchaTestCase.php
+++ b/.tests/php/unit/HCaptchaTestCase.php
@@ -633,6 +633,16 @@ protected function get_test_integrations_form_fields() {
 							'registration' => 'Registration Form',
 						],
 				],
+			'classified_listing_status'     => [
+				'label'   => 'Classified Listing',
+				'type'    => 'checkbox',
+				'options' => [
+					'contact'   => 'Contact Form',
+					'login'     => 'Login Form',
+					'lost_pass' => 'Lost Password Form',
+					'register'  => 'Register Form',
+				],
+			],
 			'colorlib_customizer_status'    => [
 				'label'   => 'Colorlib Login Customizer',
 				'type'    => 'checkbox',
@@ -690,6 +700,13 @@ protected function get_test_integrations_form_fields() {
 							'form' => 'Form',
 						],
 				],
+			'formidable_forms_status'       => [
+				'label'   => 'Formidable Forms',
+				'type'    => 'checkbox',
+				'options' => [
+					'form' => 'Form',
+				],
+			],
 			'forminator_status'             =>
 				[
 					'label'   => 'Forminator',
@@ -770,6 +787,15 @@ protected function get_test_integrations_form_fields() {
 							'form' => 'Form',
 						],
 				],
+			'paid_memberships_pro_status'   =>
+				[
+					'label'   => 'Paid Memberships Pro',
+					'type'    => 'checkbox',
+					'options' => [
+						'checkout' => 'Checkout Form',
+						'login'    => 'Login Form',
+					],
+				],
 			'quform_status'                 =>
 				[
 					'label'   => 'Quform',
@@ -853,7 +879,8 @@ protected function get_test_integrations_form_fields() {
 					'type'    => 'checkbox',
 					'options' =>
 						[
-							'comment_form' => 'Comment Form',
+							'comment_form'   => 'Comment Form',
+							'subscribe_form' => 'Subscribe Form',
 						],
 				],
 			'wpforo_status'                 =>
diff --git a/.tests/php/unit/Settings/Abstracts/SettingsBaseTest.php b/.tests/php/unit/Settings/Abstracts/SettingsBaseTest.php
index 3582185a..dabc3a33 100644
--- a/.tests/php/unit/Settings/Abstracts/SettingsBaseTest.php
+++ b/.tests/php/unit/Settings/Abstracts/SettingsBaseTest.php
@@ -521,6 +521,7 @@ public function test_base_admin_enqueue_scripts() {
 		$subject->shouldReceive( 'get_active_tab' )->once()->andReturn( $page );
 		$subject->shouldReceive( 'plugin_url' )->once()->andReturn( $plugin_url );
 		$subject->shouldReceive( 'plugin_version' )->once()->andReturn( $plugin_version );
+		$subject->shouldReceive( 'is_options_screen' )->andReturn( true );
 
 		WP_Mock::userFunction( 'wp_enqueue_style' )
 			->with(
@@ -1082,7 +1083,7 @@ private function dp_text_field_callback() {
 					'disabled'     => false,
 				],
 				'<input  name="hcaptcha_settings[some_id]"' .
-				' id="some_id" type="text" placeholder="" value="some text" autocomplete="" class="regular-text" />',
+				' id="some_id" type="text" placeholder="" value="some text" autocomplete="" data-lpignore="false" class="regular-text" />',
 			],
 			'Text with helper'       => [
 				[
@@ -1097,7 +1098,7 @@ private function dp_text_field_callback() {
 					'disabled'     => false,
 				],
 				'<input  name="hcaptcha_settings[some_id]"' .
-				' id="some_id" type="text" placeholder="" value="some text" autocomplete="" class="regular-text" />' .
+				' id="some_id" type="text" placeholder="" value="some text" autocomplete="" data-lpignore="false" class="regular-text" />' .
 				'<span class="helper"><span class="helper-content">This is helper</span></span>',
 			],
 			'Text with supplemental' => [
@@ -1113,7 +1114,7 @@ private function dp_text_field_callback() {
 					'disabled'     => false,
 				],
 				'<input  name="hcaptcha_settings[some_id]"' .
-				' id="some_id" type="text" placeholder="" value="some text" autocomplete="" class="regular-text" />' .
+				' id="some_id" type="text" placeholder="" value="some text" autocomplete="" data-lpignore="false" class="regular-text" />' .
 				'<p class="description">This is supplemental</p>',
 			],
 		];
@@ -1139,7 +1140,7 @@ private function dp_password_field_callback() {
 					'disabled'     => false,
 				],
 				'<input  name="hcaptcha_settings[some_id]"' .
-				' id="some_id" type="password" placeholder="" value="some password" autocomplete="off" class="regular-text" />',
+				' id="some_id" type="password" placeholder="" value="some password" autocomplete="new-password" data-lpignore="true" class="regular-text" />',
 			],
 		];
 	}
diff --git a/.tests/php/unit/Settings/GeneralTest.php b/.tests/php/unit/Settings/GeneralTest.php
index e4504a48..d9bbf025 100644
--- a/.tests/php/unit/Settings/GeneralTest.php
+++ b/.tests/php/unit/Settings/GeneralTest.php
@@ -268,17 +268,4 @@ static function ( $name ) use ( $plugin_url, $plugin_version ) {
 
 		$subject->admin_enqueue_scripts();
 	}
-
-	/**
-	 * Test admin_enqueue_scripts() not on own screen.
-	 */
-	public function test_admin_enqueue_scripts_not_on_own_screen() {
-		$subject = Mockery::mock( General::class )->makePartial();
-		$subject->shouldAllowMockingProtectedMethods();
-		$subject->shouldReceive( 'is_options_screen' )->with()->andReturn( false );
-
-		WP_Mock::userFunction( 'wp_enqueue_style' )->never();
-
-		$subject->admin_enqueue_scripts();
-	}
 }
diff --git a/.tests/php/unit/Settings/IntegrationsTest.php b/.tests/php/unit/Settings/IntegrationsTest.php
index 629cb6ba..c4109f9a 100644
--- a/.tests/php/unit/Settings/IntegrationsTest.php
+++ b/.tests/php/unit/Settings/IntegrationsTest.php
@@ -178,7 +178,7 @@ static function ( $name ) use ( $plugin_url ) {
 		self::assertSame( 'wp_status', $first_key );
 
 		foreach ( $form_fields as $form_field ) {
-			$section = $form_field['disabled'] ? Integrations::SECTION_DISABLED : '';
+			$section = $form_field['disabled'] ? Integrations::SECTION_DISABLED : Integrations::SECTION_ENABLED;
 
 			self::assertTrue( (bool) preg_match( '<img src="' . $plugin_url . '/assets/images/.+?" alt=".+?">', $form_field['label'] ) );
 			self::assertArrayHasKey( 'class', $form_field );
@@ -324,17 +324,4 @@ static function ( $name ) use ( $plugin_url, $plugin_version ) {
 
 		$subject->admin_enqueue_scripts();
 	}
-
-	/**
-	 * Test admin_enqueue_scripts() not on own screen.
-	 */
-	public function test_admin_enqueue_scripts_not_on_own_screen() {
-		$subject = Mockery::mock( Integrations::class )->makePartial();
-		$subject->shouldAllowMockingProtectedMethods();
-		$subject->shouldReceive( 'is_options_screen' )->with()->andReturn( false );
-
-		WP_Mock::userFunction( 'wp_enqueue_style' )->never();
-
-		$subject->admin_enqueue_scripts();
-	}
 }
diff --git a/assets/css/system-info.css b/assets/css/system-info.css
new file mode 100644
index 00000000..e42a8e8b
--- /dev/null
+++ b/assets/css/system-info.css
@@ -0,0 +1,58 @@
+#hcaptcha-system-info-wrap {
+	position: relative;
+	max-width: 1000px;
+}
+
+#hcaptcha-system-info-wrap .dashicons-before.dashicons-media-text {
+	position: absolute;
+	top: 10px;
+	right: 26px;
+	opacity: 0.7;
+	cursor: pointer;
+}
+
+#hcaptcha-system-info-wrap .dashicons-before.dashicons-media-text:before {
+	width: 30px;
+	height: 30px;
+	font-size: 30px;
+}
+
+#hcaptcha-options .helper {
+	position: absolute;
+	width: 30px;
+	height: 30px;
+	top: 10px;
+	right: 26px;
+	z-index: 1;
+}
+
+#hcaptcha-options .helper:hover {
+	cursor: pointer;
+}
+
+#hcaptcha-options .helper::before {
+	content: '';
+	top: 0;
+	left: 0;
+	transform: translate( 0, 0 );
+	background: transparent;
+}
+
+#hcaptcha-options .helper:hover .helper-content {
+	display: block;
+	z-index: 1;
+	max-width: 300px;
+	width: max-content;
+	transform: translate(-6px, 38px);
+}
+
+textarea#hcaptcha-system-info {
+	width: 100%;
+	height: 450px;
+	font-size: 12px;
+	font-family: Consolas, Monaco, monospace;
+	background: #fff;
+	white-space: pre;
+	overflow: auto;
+	padding: 20px;
+}
diff --git a/assets/images/classified-listing-logo.png b/assets/images/classified-listing-logo.png
new file mode 100644
index 00000000..e1226e25
Binary files /dev/null and b/assets/images/classified-listing-logo.png differ
diff --git a/assets/images/formidable-forms-logo.png b/assets/images/formidable-forms-logo.png
new file mode 100644
index 00000000..2928e0ab
Binary files /dev/null and b/assets/images/formidable-forms-logo.png differ
diff --git a/assets/images/paid-memberships-pro-logo.png b/assets/images/paid-memberships-pro-logo.png
new file mode 100644
index 00000000..8d7a46de
Binary files /dev/null and b/assets/images/paid-memberships-pro-logo.png differ
diff --git a/assets/js/hcaptcha-back-in-stock-notifier.js b/assets/js/hcaptcha-back-in-stock-notifier.js
index f15457db..54a71c9f 100644
--- a/assets/js/hcaptcha-back-in-stock-notifier.js
+++ b/assets/js/hcaptcha-back-in-stock-notifier.js
@@ -16,3 +16,7 @@
 			'&h-captcha-response=' + response + '&hcaptcha-widget-id=' + id + '&' + nonceName + '=' + nonce;
 	} );
 }( jQuery ) );
+
+jQuery( document ).ajaxStop( function() {
+	window.hCaptchaBindEvents();
+} );
diff --git a/assets/js/hcaptcha-nf.js b/assets/js/hcaptcha-nf.js
index 6f3820fe..af5c5118 100644
--- a/assets/js/hcaptcha-nf.js
+++ b/assets/js/hcaptcha-nf.js
@@ -9,6 +9,7 @@ const HCaptchaFieldController = Marionette.Object.extend( {
 		// On the Form Submission's field validation.
 		const submitChannel = Backbone.Radio.channel( 'submit' );
 		this.listenTo( submitChannel, 'validate:field', this.updateHcaptcha );
+		this.listenTo( submitChannel, 'validate:field', this.updateHcaptcha );
 
 		// On the Field's model value change.
 		const fieldsChannel = Backbone.Radio.channel( 'fields' );
@@ -31,9 +32,13 @@ const HCaptchaFieldController = Marionette.Object.extend( {
 			);
 		} else {
 			const fieldId = model.get( 'id' );
-			const widgetId = document.querySelector(
-				'.h-captcha[data-fieldid="' + fieldId + '"] iframe'
-			).dataset.hcaptchaWidgetId;
+			const widget = document.querySelector( '.h-captcha[data-fieldId="' + fieldId + '"] iframe' );
+
+			if ( ! widget ) {
+				return;
+			}
+
+			const widgetId = widget.dataset.hcaptchaWidgetId;
 			const hcapResponse = hcaptcha.getResponse( widgetId );
 			model.set( 'value', hcapResponse );
 		}
@@ -45,3 +50,23 @@ document.addEventListener( 'DOMContentLoaded', function() {
 	// Instantiate our custom field's controller, defined above.
 	window.hCaptchaFieldController = new HCaptchaFieldController();
 } );
+
+/* global jQuery */
+
+( function( $ ) {
+	// noinspection JSCheckFunctionSignatures
+	$.ajaxPrefilter( function( options ) {
+		const data = options.data;
+
+		if ( ! data.startsWith( 'action=nf_ajax_submit' ) ) {
+			return;
+		}
+
+		const urlParams = new URLSearchParams( data );
+		const formId = JSON.parse( urlParams.get( 'formData' ) ).id;
+		const $form = $( '#nf-form-' + formId + '-cont' );
+		let id = $form.find( '[name="hcaptcha-widget-id"]' ).val();
+		id = id ? id : '';
+		options.data += '&hcaptcha-widget-id=' + id;
+	} );
+}( jQuery ) );
diff --git a/assets/js/hcaptcha-wpforo.js b/assets/js/hcaptcha-wpforo.js
index 015344b0..df8cefa4 100644
--- a/assets/js/hcaptcha-wpforo.js
+++ b/assets/js/hcaptcha-wpforo.js
@@ -1,11 +1,11 @@
 /* global jQuery */
 
-const wpforo = function( $ ) {
+const hCaptchaWPForo = function( $ ) {
 	$( '.wpforo-section .add_wpftopic:not(.not_reg_user)' ).click( function() {
 		window.hCaptchaBindEvents();
 	} );
 };
 
-window.hCaptchaWPForo = wpforo;
+window.hCaptchaWPForo = hCaptchaWPForo;
 
-jQuery( document ).ready( wpforo );
+jQuery( document ).ready( hCaptchaWPForo );
diff --git a/assets/js/integrations.js b/assets/js/integrations.js
index d79bb559..e98aa95f 100644
--- a/assets/js/integrations.js
+++ b/assets/js/integrations.js
@@ -5,9 +5,6 @@ const integrations = function( $ ) {
 	const $message = $( msgSelector );
 	const $wpwrap = $( '#wpwrap' );
 	const $adminmenuwrap = $( '#adminmenuwrap' );
-	const width = $wpwrap.width() + $adminmenuwrap.width();
-	const top = $wpwrap.position().top;
-	const left = $adminmenuwrap.width();
 
 	function clearMessage() {
 		$message.removeClass();
@@ -24,9 +21,9 @@ const integrations = function( $ ) {
 		$message.css( 'visibility', 'hidden' );
 
 		$fixed.css( 'margin', '0px' );
-		$fixed.css( 'top', top );
-		$fixed.css( 'left', left );
-		$fixed.width( width );
+		$fixed.css( 'top', $wpwrap.position().top );
+		$fixed.css( 'left', $adminmenuwrap.width() );
+		$fixed.width( $( window ).width() - $adminmenuwrap.width() );
 		$fixed.css( 'position', 'fixed' );
 		$( 'body' ).append( $fixed );
 
@@ -107,7 +104,6 @@ const integrations = function( $ ) {
 			status,
 		};
 
-		$tr.find( 'fieldset' ).attr( 'disabled', ! activate );
 		$tr.addClass( activateClass );
 
 		$.post( {
@@ -121,7 +117,9 @@ const integrations = function( $ ) {
 				}
 
 				const $table = $( '.form-table' ).eq( activate ? 0 : 1 );
+				const top = $wpwrap.position().top;
 
+				$tr.find( 'fieldset' ).attr( 'disabled', ! activate );
 				showSuccessMessage( response.data );
 				insertIntoTable( $table, 'hcaptcha-integrations-' + status, $tr );
 				$( 'html, body' ).animate(
diff --git a/assets/js/system-info.js b/assets/js/system-info.js
new file mode 100644
index 00000000..0d865260
--- /dev/null
+++ b/assets/js/system-info.js
@@ -0,0 +1,25 @@
+/* global HCaptchaSystemInfoObject */
+
+document.addEventListener( 'DOMContentLoaded', function() {
+	document.querySelector( '#hcaptcha-system-info-wrap .helper' ).addEventListener(
+		'click',
+		function() {
+			const systemInfoTextArea = document.getElementById( 'hcaptcha-system-info' );
+
+			navigator.clipboard.writeText( systemInfoTextArea.value ).then(
+				() => {
+					// Clipboard successfully set.
+				},
+				() => {
+					// Clipboard write failed.
+				},
+			);
+
+			// noinspection JSUnresolvedVariable
+			const message = HCaptchaSystemInfoObject.copiedMsg;
+
+			// eslint-disable-next-line no-alert
+			alert( message );
+		},
+	);
+} );
diff --git a/hcaptcha.php b/hcaptcha.php
index e2032cfe..9a4584ec 100644
--- a/hcaptcha.php
+++ b/hcaptcha.php
@@ -10,7 +10,7 @@
  * Plugin Name:          hCaptcha for WordPress
  * Plugin URI:           https://www.hcaptcha.com/
  * Description:          hCaptcha keeps out bots and spam while putting privacy first. It is a drop-in replacement for reCAPTCHA.
- * Version:              2.9.0
+ * Version:              2.10.0
  * Requires at least:    5.0
  * Requires PHP:         5.6
  * Author:               hCaptcha
@@ -39,7 +39,7 @@
 /**
  * Plugin version.
  */
-const HCAPTCHA_VERSION = '2.9.0';
+const HCAPTCHA_VERSION = '2.10.0';
 
 /**
  * Path to the plugin dir.
diff --git a/readme.txt b/readme.txt
index 29fb8236..daf07fc7 100644
--- a/readme.txt
+++ b/readme.txt
@@ -4,7 +4,7 @@ Tags: captcha, hcaptcha, recaptcha, spam, abuse
 Requires at least: 5.0
 Tested up to: 6.2
 Requires PHP: 5.6.20
-Stable tag: 2.9.0
+Stable tag: 2.10.0
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 
@@ -177,11 +177,11 @@ $form_id: product_id
 
 BBPress
 $source: 'bbpress/bbpress.php'
-$form_id: 'new_topic', or 'reply'
+$form_id: 'new_topic' or 'reply'
 
 Beaver Builder
 $source: 'bb-plugin/fl-builder.php'
-$form_id: 'contact', or 'login'
+$form_id: 'contact' or 'login'
 
 Brizy
 $source: 'brizy/brizy.php'
@@ -191,6 +191,10 @@ BuddyPress
 $source: 'buddypress/bp-loader.php'
 $form_id: 'create_group' or 'register'
 
+Classified Listing
+$source: 'classified-listing/classified-listing.php'
+$form_id: 'contact', ''login', 'lost_password' or 'register'
+
 Divi
 $source: 'Divi'
 $form_id: post_id for comment form, 'contact', 'email_optin', or 'login'
@@ -203,13 +207,57 @@ Elementor Pro
 $source: 'elementor-pro/elementor-pro.php'
 $form_id: Form ID set for the form Content->Additional Options.
 
+Jetpack
+$source: 'jetpack/jetpack.php'
+$form_id: 'contact'
+
+Kadence
+$source: 'kadence-blocks/kadence-blocks.php'
+$form_id: post_id
+
+MemberPress
+$source: 'memberpress/memberpress.php'
+$form_id: 'login' or 'register'
+
+Paid Memberships Pro
+$source: 'paid-memberships-pro/paid-memberships-pro.php'
+$form_id: 'checkout' or 'login'
+
+Subscriber
+$source: 'subscriber/subscriber.php'
+$form_id: 'form'
+
+Support Candy
+$source: 'supportcandy/supportcandy.php'
+$form_id: 'form'
+
+Ultimate Member
+$source: 'ultimate-member/ultimate-member.php'
+$form_id: form_id or 'password'
+
+WooCommerce Wishlist
+$source: 'woocommerce-wishlists/woocommerce-wishlists.php'
+$form_id: 'form'
+
+wpDiscuz
+$source: 'wpdiscuz/class.WpdiscuzCore.php'
+$form_id: post_id
+
+WPForms
+$source: 'wpforms-lite/wpforms.php' or 'wpforms/wpforms.php'
+$form_id: form_id
+
+wpForo
+$source: 'wpforo/wpforo.php'
+$form_id: 'new_topic' for new topic form and topicid for reply form. Topicid can be found in HTML code searching for 'data-topicid' in Elements.
+
 WordPress Core
 $source: 'WordPress'
-$form_id: post_id for comment form, 'login', 'lost_password', 'password_protected', and 'register'
+$form_id: post_id for comment form, 'login', 'lost_password', 'password_protected', or 'register'
 
 WooCommerce
 $source: 'woocommerce/woocommerce.php'
-$form_id: 'checkout', 'login', 'lost_password', 'order_tracking', and 'register'
+$form_id: 'checkout', 'login', 'lost_password', 'order_tracking', or 'register'
 
 Below is an example of how to skip the hCaptcha widget on a Gravity Form with id = 1.
 
@@ -359,6 +407,10 @@ For more details, please see the hCaptcha privacy policy at:
 * Beaver Builder Login Form
 * BuddyPress Create Group Form
 * Buddypress Registration Form
+* Classified Listing Contact Form
+* Classified Listing Login Form
+* Classified Listing Lost Password Form
+* Classified Listing Register Form
 * Contact Form 7
 * Divi Comment Form
 * Divi Contact Form
@@ -368,6 +420,7 @@ For more details, please see the hCaptcha privacy policy at:
 * Elementor Pro Form
 * Fluent Forms
 * Forminator
+* Formidable Forms
 * GiveWP Form
 * Gravity Forms
 * Jetpack Forms
@@ -377,6 +430,8 @@ For more details, please see the hCaptcha privacy policy at:
 * MemberPress Register Form
 * Ninja Forms
 * Otter Blocks Forms
+* Paid Memberships Pro Checkout Form
+* Paid Memberships Pro Login Form
 * Quform Forms
 * Sendinblue Form
 * Subscriber Form
@@ -391,7 +446,8 @@ For more details, please see the hCaptcha privacy policy at:
 * WooCommerce Order Tracking Form
 * WooCommerce Wishlist
 * WPForms Lite
-* wpDiscuz
+* wpDiscuz Comment Form
+* wpDiscuz Support Form
 * wpForo New Topic Form
 * wpForo Reply Form
 
@@ -415,6 +471,28 @@ Instructions for popular native integrations are below:
 
 == Changelog ==
 
+= 2.10.0 =
+* Added compatibility with Paid Memberships Pro.
+* Added compatibility with Classified Listing.
+* Added compatibility with Formidable Forms.
+* Added compatibility with wpDiscuz Subscribe Form.
+* Added System Info tab.
+* Added Back In Stock Notifier support in the popup window.
+* Added support to turn off hCaptcha on a specific Jetpack form.
+* Added support to turn off hCaptcha on a specific Kadence form.
+* Added support to turn off hCaptcha on a specific Mailchimp form.
+* Added support to turn off hCaptcha on a specific MemberPress form.
+* Added support to turn off hCaptcha on a specific Ninja form.
+* Added support to turn off hCaptcha on a specific Quform form.
+* Added support to turn off hCaptcha on a specific Sendinblue form.
+* Added support to turn off hCaptcha on a specific Subscriber form.
+* Added support to turn off hCaptcha on a specific Support Candy form.
+* Added support to turn off hCaptcha on a specific Ultimate Member form.
+* Added support to turn off hCaptcha on a specific WooCommerce Wishlist form.
+* Added support to turn off hCaptcha on a specific wpDiscuz form.
+* Added support to turn off hCaptcha on a specific wpForms form.
+* Fixed messages dynamic styling on Integrations page.
+
 = 2.9.0 =
 * Added compatibility with Back In Stock Notifier.
 * Added compatibility with Colorlib Login Customizer.
@@ -423,6 +501,10 @@ Instructions for popular native integrations are below:
 * Added support to turn off hCaptcha on a specific ACF Extended form.
 * Added support to turn off hCaptcha on a specific Asgaros forum form.
 * Added support to turn off hCaptcha on a specific Avada form.
+* Added support to turn off hCaptcha on a specific BBPress form.
+* Added support to turn off hCaptcha on a specific Beaver Builder form.
+* Added support to turn off hCaptcha on a specific Brizy form.
+* Added support to turn off hCaptcha on a specific Buddy Press form.
 * Added support to turn off hCaptcha on a specific Contact 7 form.
 * Added support to turn off hCaptcha on a specific Download Manager form.
 * Added support to turn off hCaptcha on a specific Elementor form.
diff --git a/src/js/hcaptcha/hcaptcha.js b/src/js/hcaptcha/hcaptcha.js
index 3a57d1bd..dd39aa63 100644
--- a/src/js/hcaptcha/hcaptcha.js
+++ b/src/js/hcaptcha/hcaptcha.js
@@ -7,7 +7,7 @@
 class HCaptcha {
 	constructor() {
 		this.formSelector = 'form, div.fl-login-form, section.cwginstock-subscribe-form';
-		this.submitButtonSelector = '*[type="submit"], a.fl-button span, button[type="button"].ff-btn, a.et_pb_newsletter_button.et_pb_button, .forminator-button-submit';
+		this.submitButtonSelector = '*[type="submit"], a.fl-button span, button[type="button"].ff-btn, a.et_pb_newsletter_button.et_pb_button, .forminator-button-submit, .frm_button_submit';
 		this.foundForms = [];
 		this.params = null;
 		this.validate = this.validate.bind( this );
diff --git a/src/php/Abstracts/LostPasswordBase.php b/src/php/Abstracts/LostPasswordBase.php
new file mode 100644
index 00000000..40e4032b
--- /dev/null
+++ b/src/php/Abstracts/LostPasswordBase.php
@@ -0,0 +1,85 @@
+<?php
+/**
+ * LostPasswordBase class file.
+ *
+ * @package hcaptcha-wp
+ */
+
+namespace HCaptcha\Abstracts;
+
+use HCaptcha\Helpers\HCaptcha;
+use WP_Error;
+
+/**
+ * Class LostPasswordBase
+ */
+abstract class LostPasswordBase {
+
+	/**
+	 * Constructor.
+	 */
+	public function __construct() {
+		$this->init_hooks();
+	}
+
+	/**
+	 * Init hooks.
+	 */
+	protected function init_hooks() {
+		add_action( static::ADD_CAPTCHA_ACTION, [ $this, 'add_captcha' ] );
+		add_action( 'lostpassword_post', [ $this, 'verify' ] );
+	}
+
+	/**
+	 * Add captcha.
+	 */
+	public function add_captcha() {
+		$args = [
+			'action' => static::ACTION,
+			'name'   => static::NONCE,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => 'lost_password',
+			],
+		];
+
+		HCaptcha::form_display( $args );
+	}
+
+	/**
+	 * Verify lost password form.
+	 *
+	 * @param WP_Error $error Error.
+	 *
+	 * @return void
+	 */
+	public function verify( $error ) {
+		// phpcs:disable WordPress.Security.NonceVerification.Missing
+		$post_value = isset( $_POST[ static::POST_KEY ] ) ?
+			sanitize_text_field( wp_unslash( $_POST[ static::POST_KEY ] ) ) :
+			'';
+
+		if (
+			( ! isset( $_POST[ static::POST_KEY ] ) ) ||
+			( static::POST_VALUE && static::POST_VALUE !== $post_value )
+		) {
+			// Submitted lost password form cannot be handled by this class.
+			return;
+		}
+		// phpcs:enable WordPress.Security.NonceVerification.Missing
+
+		$error_message = hcaptcha_verify_post(
+			static::NONCE,
+			static::ACTION
+		);
+
+		if ( null === $error_message ) {
+			return;
+		}
+
+		$code = array_search( $error_message, hcap_get_error_messages(), true );
+		$code = $code ?: 'fail';
+
+		$error->add( $code, $error_message );
+	}
+}
diff --git a/src/php/BackInStockNotifier/Form.php b/src/php/BackInStockNotifier/Form.php
index 05ff4206..c179e0b7 100644
--- a/src/php/BackInStockNotifier/Form.php
+++ b/src/php/BackInStockNotifier/Form.php
@@ -51,7 +51,9 @@ public function init_hooks() {
 		add_action( 'cwg_instock_after_email_field', [ $this, 'after_email_field' ], 10, 2 );
 		add_action( 'cwginstock_after_submit_button', [ $this, 'after_submit_button' ], 10, 2 );
 		add_action( 'cwginstock_ajax_data', [ $this, 'verify' ], 0, 2 );
-		add_action( 'wp_print_footer_scripts', [ $this, 'enqueue_scripts' ], 9 );
+
+		// Fire it before same in Main, which is on 0.
+		add_action( 'wp_print_footer_scripts', [ $this, 'enqueue_scripts' ], - 1 );
 	}
 
 	/**
@@ -132,6 +134,14 @@ public function verify( $post_data, $rest_api ) {
 	 * @return void
 	 */
 	public function enqueue_scripts() {
+		if ( is_shop() ) {
+			/**
+			 * The form will be loaded on Ajax.
+			 * Here we signal the Main class to load hcaptcha script.
+			 */
+			hcaptcha()->form_shown = true;
+		}
+
 		if ( ! hcaptcha()->form_shown ) {
 			return;
 		}
diff --git a/src/php/ClassifiedListing/Contact.php b/src/php/ClassifiedListing/Contact.php
new file mode 100644
index 00000000..5526f158
--- /dev/null
+++ b/src/php/ClassifiedListing/Contact.php
@@ -0,0 +1,122 @@
+<?php
+/**
+ * Contact class file.
+ *
+ * @package hcaptcha-wp
+ */
+
+namespace HCaptcha\ClassifiedListing;
+
+use HCaptcha\Helpers\HCaptcha;
+use WP_Error;
+
+/**
+ * Class Contact.
+ */
+class Contact {
+
+	/**
+	 * Nonce action.
+	 */
+	const ACTION = 'hcaptcha_classified_listing_contact';
+
+	/**
+	 * Nonce name.
+	 */
+	const NONCE = 'hcaptcha_classified_listing_contact_nonce';
+
+	/**
+	 * Class constructor.
+	 */
+	public function __construct() {
+		$this->init_hooks();
+	}
+
+	/**
+	 * Init hooks.
+	 *
+	 * @return void
+	 */
+	private function init_hooks() {
+		add_action( 'rtcl_before_template_part', [ $this, 'before_template_part' ], 10, 3 );
+		add_action( 'rtcl_after_template_part', [ $this, 'after_template_part' ], 10, 3 );
+		add_action( 'rtcl_listing_seller_contact_form_validation', [ $this, 'verify' ], 10, 2 );
+	}
+
+	/**
+	 * Start output buffer before template part.
+	 *
+	 * @param string $template_name Template name.
+	 * @param string $located       Location.
+	 * @param array  $template_args Arguments.
+	 *
+	 * @return void
+	 * @noinspection PhpUnusedParameterInspection
+	 */
+	public function before_template_part( $template_name, $located, $template_args ) {
+		if ( 'listing/email-to-seller-form' !== $template_name ) {
+			return;
+		}
+
+		ob_start();
+	}
+
+	/**
+	 * Stop output buffer after template part and add captcha.
+	 *
+	 * @param string $template_name Template name.
+	 * @param string $located       Location.
+	 * @param array  $template_args Arguments.
+	 *
+	 * @return void
+	 * @noinspection PhpUnusedParameterInspection
+	 */
+	public function after_template_part( $template_name, $located, $template_args ) {
+		if ( 'listing/email-to-seller-form' !== $template_name ) {
+			return;
+		}
+
+		$template = ob_get_clean();
+
+		$args = [
+			'action' => self::ACTION,
+			'name'   => self::NONCE,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => 'contact',
+			],
+		];
+
+		$search   = '<button type="submit"';
+		$replace  = HCaptcha::form( $args ) . $search;
+		$template = str_replace( $search, $replace, $template );
+
+		// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
+		echo $template;
+	}
+
+	/**
+	 * Verify contact form.
+	 *
+	 * @param WP_Error $error Error.
+	 * @param array    $data  Form data.
+	 *
+	 * @return void
+	 * @noinspection PhpUnusedParameterInspection
+	 */
+	public function verify( $error, $data ) {
+		$error_message = hcaptcha_verify_post(
+			static::NONCE,
+			static::ACTION
+		);
+
+		if ( null === $error_message ) {
+			return;
+		}
+
+		$code = array_search( $error_message, hcap_get_error_messages(), true );
+		$code = $code ?: 'fail';
+
+		$error->add( $code, $error_message );
+	}
+}
diff --git a/src/php/ClassifiedListing/Login.php b/src/php/ClassifiedListing/Login.php
new file mode 100644
index 00000000..1690f3cd
--- /dev/null
+++ b/src/php/ClassifiedListing/Login.php
@@ -0,0 +1,101 @@
+<?php
+/**
+ * Login class file.
+ *
+ * @package hcaptcha-wp
+ */
+
+namespace HCaptcha\ClassifiedListing;
+
+use HCaptcha\Abstracts\LoginBase;
+use HCaptcha\Helpers\HCaptcha;
+use WP_Error;
+use WP_User;
+
+/**
+ * Class Login.
+ */
+class Login extends LoginBase {
+
+	/**
+	 * Nonce action.
+	 */
+	const ACTION = 'hcaptcha_login';
+
+	/**
+	 * Nonce name.
+	 */
+	const NONCE = 'hcaptcha_login_nonce';
+
+	/**
+	 * Init hooks.
+	 */
+	protected function init_hooks() {
+		parent::init_hooks();
+
+		add_action( 'rtcl_login_form', [ $this, 'add_captcha' ] );
+		add_action( 'wp_authenticate_user', [ $this, 'verify' ], 10, 2 );
+	}
+
+	/**
+	 * Add captcha.
+	 *
+	 * @return void
+	 */
+	public function add_captcha() {
+		if ( ! $this->is_login_limit_exceeded() ) {
+			return;
+		}
+
+		$args = [
+			'action' => self::ACTION,
+			'name'   => self::NONCE,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => 'login',
+			],
+		];
+
+		HCaptcha::form_display( $args );
+	}
+
+	/**
+	 * Verify login form.
+	 *
+	 * @param WP_User|WP_Error $user     WP_User or WP_Error object if a previous
+	 *                                   callback failed authentication.
+	 * @param string           $password Password to check against the user.
+	 *
+	 * @return WP_User|WP_Error
+	 * @noinspection PhpUnusedParameterInspection
+	 */
+	public function verify( $user, $password ) {
+		// phpcs:disable WordPress.Security.NonceVerification.Missing
+		$rtcl_login = isset( $_POST['rtcl-login'] ) ?
+			sanitize_text_field( wp_unslash( $_POST['rtcl-login'] ) ) :
+			'';
+		// phpcs:enable WordPress.Security.NonceVerification.Missing
+
+		if ( 'login' !== $rtcl_login ) {
+			return $user;
+		}
+
+		if ( ! $this->is_login_limit_exceeded() ) {
+			return $user;
+		}
+
+		$error_message = hcaptcha_verify_post(
+			self::NONCE,
+			self::ACTION
+		);
+
+		if ( null === $error_message ) {
+			return $user;
+		}
+
+		$code = array_search( $error_message, hcap_get_error_messages(), true );
+		$code = $code ?: 'fail';
+
+		return new WP_Error( $code, $error_message, 400 );
+	}
+}
diff --git a/src/php/ClassifiedListing/LostPassword.php b/src/php/ClassifiedListing/LostPassword.php
new file mode 100644
index 00000000..3b533c5a
--- /dev/null
+++ b/src/php/ClassifiedListing/LostPassword.php
@@ -0,0 +1,41 @@
+<?php
+/**
+ * Register class file.
+ *
+ * @package hcaptcha-wp
+ */
+
+namespace HCaptcha\ClassifiedListing;
+
+use HCaptcha\Abstracts\LostPasswordBase;
+
+/**
+ * Class LostPassword.
+ */
+class LostPassword extends LostPasswordBase {
+
+	/**
+	 * Nonce action.
+	 */
+	const ACTION = 'hcaptcha_classified_listing_lost_password';
+
+	/**
+	 * Nonce name.
+	 */
+	const NONCE = 'hcaptcha_classified_listing_lost_password_nonce';
+
+	/**
+	 * Add hCaptcha action.
+	 */
+	const ADD_CAPTCHA_ACTION = 'rtcl_lost_password_form';
+
+	/**
+	 * $_POST key to check.
+	 */
+	const POST_KEY = 'rtcl-lost-password';
+
+	/**
+	 * $_POST value to check.
+	 */
+	const POST_VALUE = 'Reset Password';
+}
diff --git a/src/php/ClassifiedListing/Register.php b/src/php/ClassifiedListing/Register.php
new file mode 100644
index 00000000..cf5ae6bc
--- /dev/null
+++ b/src/php/ClassifiedListing/Register.php
@@ -0,0 +1,98 @@
+<?php
+/**
+ * Register class file.
+ *
+ * @package hcaptcha-wp
+ */
+
+namespace HCaptcha\ClassifiedListing;
+
+use HCaptcha\Helpers\HCaptcha;
+use WP_Error;
+
+/**
+ * Class Register.
+ */
+class Register {
+
+	/**
+	 * Nonce action.
+	 */
+	const ACTION = 'hcaptcha_classified_listing_register';
+
+	/**
+	 * Nonce name.
+	 */
+	const NONCE = 'hcaptcha_classified_listing_register_nonce';
+
+	/**
+	 * Constructor.
+	 */
+	public function __construct() {
+		$this->init_hooks();
+	}
+
+	/**
+	 * Init hooks.
+	 */
+	protected function init_hooks() {
+		add_action( 'rtcl_register_form', [ $this, 'add_captcha' ] );
+		add_filter( 'rtcl_process_registration_errors', [ $this, 'verify' ], 10, 5 );
+	}
+
+	/**
+	 * Add captcha.
+	 *
+	 * @return void
+	 */
+	public function add_captcha() {
+		$args = [
+			'action' => self::ACTION,
+			'name'   => self::NONCE,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => 'register',
+			],
+		];
+
+		HCaptcha::form_display( $args );
+	}
+
+	/**
+	 * Verify login form.
+	 *
+	 * @param WP_Error $validation_error Validation error.
+	 * @param string   $email            Email.
+	 * @param string   $username         Username.
+	 * @param string   $password         Password.
+	 * @param array    $post             $_POST array.
+	 *
+	 * @return WP_Error
+	 * @noinspection PhpUnusedParameterInspection
+	 */
+	public function verify( $validation_error, $email, $username, $password, $post ) {
+		// phpcs:disable WordPress.Security.NonceVerification.Missing
+		$rtcl_register = isset( $_POST['rtcl-register'] ) ?
+			sanitize_text_field( wp_unslash( $_POST['rtcl-register'] ) ) :
+			'';
+		// phpcs:enable WordPress.Security.NonceVerification.Missing
+
+		if ( 'Register' !== $rtcl_register ) {
+			return $validation_error;
+		}
+
+		$error_message = hcaptcha_verify_post(
+			self::NONCE,
+			self::ACTION
+		);
+
+		if ( null === $error_message ) {
+			return $validation_error;
+		}
+
+		$code = array_search( $error_message, hcap_get_error_messages(), true );
+		$code = $code ?: 'fail';
+
+		return new WP_Error( $code, $error_message, 400 );
+	}
+}
diff --git a/src/php/FormidableForms/Form.php b/src/php/FormidableForms/Form.php
new file mode 100644
index 00000000..7723efa2
--- /dev/null
+++ b/src/php/FormidableForms/Form.php
@@ -0,0 +1,186 @@
+<?php
+/**
+ * Form class file.
+ *
+ * @package hcaptcha-wp
+ */
+
+// phpcs:ignore Generic.Commenting.DocComment.MissingShort
+/** @noinspection PhpUndefinedClassInspection */
+
+namespace HCaptcha\FormidableForms;
+
+use FrmAppHelper;
+use HCaptcha\Helpers\HCaptcha;
+
+/**
+ * Class Form.
+ */
+class Form {
+
+	/**
+	 * Verify action.
+	 */
+	const ACTION = 'hcaptcha_formidable_forms';
+
+	/**
+	 * Verify nonce.
+	 */
+	const NONCE = 'hcaptcha_formidable_forms_nonce';
+
+	/**
+	 * The hCaptcha field id.
+	 *
+	 * @var int|string
+	 */
+	private $hcaptcha_field_id;
+
+	/**
+	 * Class constructor.
+	 */
+	public function __construct() {
+		$this->init_hooks();
+	}
+
+	/**
+	 * Add hooks.
+	 *
+	 * @return void
+	 */
+	public function init_hooks() {
+		add_filter( 'transient_frm_options', [ $this, 'get_transient' ], 10, 2 );
+		add_filter( 'frm_replace_shortcodes', [ $this, 'add_captcha' ], 10, 3 );
+		add_filter( 'frm_is_field_hidden', [ $this, 'prevent_native_validation' ], 10, 3 );
+		add_filter( 'frm_validate_entry', [ $this, 'verify' ], 10, 3 );
+		add_action( 'wp_print_footer_scripts', [ $this, 'enqueue_scripts' ], 9 );
+	}
+
+	/**
+	 * Use this plugin settings for hcaptcha in Formidable Forms.
+	 *
+	 * @param mixed  $value     Value of transient.
+	 * @param string $transient Transient name.
+	 *
+	 * @return mixed
+	 * @noinspection PhpUnusedParameterInspection
+	 */
+	public function get_transient( $value, $transient ) {
+		if (
+			! $value ||
+			( isset( $value->active_captcha ) && 'hcaptcha' !== $value->active_captcha )
+		) {
+			return $value;
+		}
+
+		$settings                = hcaptcha()->settings();
+		$value->hcaptcha_pubkey  = $settings->get_site_key();
+		$value->hcaptcha_privkey = $settings->get_secret_key();
+
+		return $value;
+	}
+
+	/**
+	 * Filter field html created and add hcaptcha.
+	 *
+	 * @param string $html  Html code of the field.
+	 * @param array  $field Field.
+	 * @param array  $atts  Attributes.
+	 *
+	 * @return string
+	 */
+	public function add_captcha( $html, $field, $atts ) {
+		if ( 'captcha' !== $field['type'] ) {
+			return $html;
+		}
+
+		$frm_settings = FrmAppHelper::get_settings();
+
+		if ( 'recaptcha' === $frm_settings->active_captcha ) {
+			return $html;
+		}
+
+		// <div id="field_5l59" class="h-captcha" data-sitekey="ead4f33b-cd8a-49fb-aa16-51683d9cffc8"></div>
+
+		if ( ! preg_match( '#<div id="(.+)" class="h-captcha" .+></div>#', $html, $m ) ) {
+			return $html;
+		}
+
+		list( $captcha_div, $div_id ) = $m;
+
+		$args = [
+			'action' => self::ACTION,
+			'name'   => self::NONCE,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( static::class ),
+				'form_id' => (int) $atts['form']->id,
+			],
+		];
+
+		$class = 'class="h-captcha"';
+		$form  = str_replace( $class, 'id="' . $div_id . '"' . $class, HCaptcha::form( $args ) );
+
+		return str_replace( $captcha_div, $form, $html );
+	}
+
+	/**
+	 * Prevent native validation.
+	 *
+	 * @param bool     $is_field_hidden Whether field is hidden.
+	 * @param stdClass $field           Field.
+	 * @param array    $post            wp_unslash( $_POST ) content.
+	 *
+	 * @return bool
+	 */
+	public function prevent_native_validation( $is_field_hidden, $field, $post ) {
+		if ( 'captcha' !== $field->type ) {
+			return $is_field_hidden;
+		}
+
+		$frm_settings = FrmAppHelper::get_settings();
+
+		if ( 'recaptcha' === $frm_settings->active_captcha ) {
+			return $is_field_hidden;
+		}
+
+		$this->hcaptcha_field_id = $field->id;
+
+		// Prevent validation of hCaptcha in Formidable Forms.
+		return true;
+	}
+
+	/**
+	 * Verify.
+	 *
+	 * @param array $errors        Errors data.
+	 * @param array $values        Value data of the form.
+	 * @param array $validate_args Custom arguments. Contains `exclude` and `posted_fields`.
+	 *
+	 * @return array
+	 * @noinspection PhpUnusedParameterInspection
+	 */
+	public function verify( $errors, $values, $validate_args ) {
+		$error_message = hcaptcha_verify_post(
+			self::NONCE,
+			self::ACTION
+		);
+
+		if ( null === $error_message ) {
+			return $errors;
+		}
+
+		$field_id                      = $this->hcaptcha_field_id ?: 1;
+		$errors[ 'field' . $field_id ] = $error_message;
+
+		return $errors;
+	}
+
+	/**
+	 * Dequeue hCaptcha script by Formidable Forms.
+	 *
+	 * @return void
+	 */
+	public function enqueue_scripts() {
+		wp_dequeue_script( 'captcha-api' );
+		wp_deregister_script( 'captcha-api' );
+	}
+}
diff --git a/src/php/Helpers/HCaptcha.php b/src/php/Helpers/HCaptcha.php
index 31b0e675..ca400882 100644
--- a/src/php/Helpers/HCaptcha.php
+++ b/src/php/Helpers/HCaptcha.php
@@ -60,8 +60,8 @@ public static function form_display( $args = [] ) {
 				/**
 				 * Example of id:
 				 * [
-				 *   'source' => ['gravityforms/gravityforms.php'],
-				 *   $form_id => 23
+				 *   'source'  => ['gravityforms/gravityforms.php'],
+				 *   'form_id' => 23
 				 * ]
 				 */
 				'protect' => true,
diff --git a/src/php/Jetpack/JetpackBase.php b/src/php/Jetpack/JetpackBase.php
index f737d7d2..96a936b0 100644
--- a/src/php/Jetpack/JetpackBase.php
+++ b/src/php/Jetpack/JetpackBase.php
@@ -14,6 +14,16 @@
  */
 abstract class JetpackBase {
 
+	/**
+	 * Nonce action.
+	 */
+	const ACTION = 'hcaptcha_jetpack';
+
+	/**
+	 * Nonce name.
+	 */
+	const NAME = 'hcaptcha_jetpack_nonce';
+
 	/**
 	 * Error message.
 	 *
@@ -32,13 +42,13 @@ public function __construct() {
 	 * Init hooks.
 	 */
 	private function init_hooks() {
-		add_filter( 'the_content', [ $this, 'jetpack_form' ] );
-		add_filter( 'widget_text', [ $this, 'jetpack_form' ], 0 );
+		add_filter( 'the_content', [ $this, 'add_captcha' ] );
+		add_filter( 'widget_text', [ $this, 'add_captcha' ], 0 );
 
 		add_filter( 'widget_text', 'shortcode_unautop' );
 		add_filter( 'widget_text', 'do_shortcode' );
 
-		add_filter( 'jetpack_contact_form_is_spam', [ $this, 'jetpack_verify' ], 100, 2 );
+		add_filter( 'jetpack_contact_form_is_spam', [ $this, 'verify' ], 100, 2 );
 	}
 
 	/**
@@ -48,7 +58,7 @@ private function init_hooks() {
 	 *
 	 * @return string|string[]|null
 	 */
-	abstract public function jetpack_form( $content );
+	abstract public function add_captcha( $content );
 
 	/**
 	 * Verify hCaptcha answer from the Jetpack Contact Form.
@@ -57,10 +67,10 @@ abstract public function jetpack_form( $content );
 	 *
 	 * @return bool|WP_Error
 	 */
-	public function jetpack_verify( $is_spam = false ) {
+	public function verify( $is_spam = false ) {
 		$this->error_message = hcaptcha_get_verify_message(
-			'hcaptcha_jetpack_nonce',
-			'hcaptcha_jetpack'
+			static::NAME,
+			static::ACTION
 		);
 
 		if ( null === $this->error_message ) {
diff --git a/src/php/Jetpack/JetpackForm.php b/src/php/Jetpack/JetpackForm.php
index 0050aab4..2e35e2c9 100644
--- a/src/php/Jetpack/JetpackForm.php
+++ b/src/php/Jetpack/JetpackForm.php
@@ -7,6 +7,8 @@
 
 namespace HCaptcha\Jetpack;
 
+use HCaptcha\Helpers\HCaptcha;
+
 /**
  * Class JetpackContactForm
  */
@@ -19,7 +21,7 @@ class JetpackForm extends JetpackBase {
 	 *
 	 * @return string|string[]|null
 	 */
-	public function jetpack_form( $content ) {
+	public function add_captcha( $content ) {
 		// Jetpack classic form.
 		$content = preg_replace_callback(
 			'~(\[contact-form[\s\S]*?][\s\S]*?)(\[/contact-form])~',
@@ -43,18 +45,20 @@ public function jetpack_form( $content ) {
 	 * @return string
 	 */
 	public function classic_callback( $matches ) {
-		$hcaptcha_shortcode = '[hcaptcha]';
-
-		if ( preg_match( '~\[hcaptcha]~', $matches[0] ) ) {
-			$hcaptcha_shortcode = '';
+		if ( has_shortcode( $matches[0], 'hcaptcha' ) ) {
+			return $matches[0];
 		}
 
-		return (
-			$matches[1] .
-			$hcaptcha_shortcode .
-			wp_nonce_field( 'hcaptcha_jetpack', 'hcaptcha_jetpack_nonce', true, false ) .
-			$matches[2]
-		);
+		$args = [
+			'action' => self::ACTION,
+			'name'   => self::NAME,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => 'contact',
+			],
+		];
+
+		return $matches[1] . $this->error_message( HCaptcha::form( $args ) ) . $matches[2];
 	}
 
 	/**
@@ -65,15 +69,22 @@ public function classic_callback( $matches ) {
 	 * @return string
 	 */
 	public function block_callback( $matches ) {
-		$replace = $matches[1] . wp_nonce_field( 'hcaptcha_jetpack', 'hcaptcha_jetpack_nonce', true, false );
-
-		if ( ! preg_match( '~\[hcaptcha]~', $matches[0] ) ) {
-			$replace = '[hcaptcha]' . $replace;
+		if ( has_shortcode( $matches[0], 'hcaptcha' ) ) {
+			return $matches[0];
 		}
 
+		$args = [
+			'action' => self::ACTION,
+			'name'   => self::NAME,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => 'contact',
+			],
+		];
+
 		return str_replace(
 			$matches[1],
-			$replace,
+			$this->error_message( HCaptcha::form( $args ) ) . $matches[1],
 			$matches[0]
 		);
 	}
diff --git a/src/php/Kadence/BlockParser.php b/src/php/Kadence/BlockParser.php
index 8553b567..7188da59 100644
--- a/src/php/Kadence/BlockParser.php
+++ b/src/php/Kadence/BlockParser.php
@@ -27,7 +27,10 @@ class BlockParser extends WP_Block_Parser {
 	public function parse( $document ) {
 		$output = parent::parse( $document );
 
-		if ( 'kadence/form' === $output[0]['blockName'] && isset( $output[0]['attrs']['recaptcha'] ) ) {
+		if (
+			isset( $output[0]['blockName'], $output[0]['attrs']['recaptcha'] ) &&
+			'kadence/form' === $output[0]['blockName']
+		) {
 			$output[0]['attrs']['recaptcha'] = false;
 		}
 
diff --git a/src/php/Kadence/Form.php b/src/php/Kadence/Form.php
index fff9eb05..131af9da 100644
--- a/src/php/Kadence/Form.php
+++ b/src/php/Kadence/Form.php
@@ -90,9 +90,16 @@ public function render_block( $block_content, $block, $instance ) {
 			return $block_content;
 		}
 
+		$args = [
+			'id' => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => isset( $block['attrs']['postID'] ) ? (int) $block['attrs']['postID'] : 0,
+			],
+		];
+
 		return preg_replace(
 			'/(<div class="kadence-blocks-form-field google-recaptcha-checkout-wrap">).+?(<\/div>)/',
-			'$1' . HCaptcha::form() . '$2',
+			'$1' . HCaptcha::form( $args ) . '$2',
 			$block_content
 		);
 	}
diff --git a/src/php/Mailchimp/Form.php b/src/php/Mailchimp/Form.php
index 92897592..a1ef1ee9 100644
--- a/src/php/Mailchimp/Form.php
+++ b/src/php/Mailchimp/Form.php
@@ -42,7 +42,7 @@ public function __construct() {
 	private function init_hooks() {
 		add_filter( 'mc4wp_form_messages', [ $this, 'add_hcap_error_messages' ], 10, 2 );
 		add_action( 'mc4wp_form_content', [ $this, 'add_captcha' ], 20, 3 );
-		add_filter( 'mc4wp_valid_form_request', [ $this, 'verify' ], 10, 2 );
+		add_filter( 'mc4wp_form_errors', [ $this, 'verify' ], 10, 2 );
 	}
 
 	/**
@@ -68,9 +68,9 @@ public function add_hcap_error_messages( $messages, $form ) {
 	/**
 	 * Add hcaptcha to MailChimp form.
 	 *
-	 * @param string $content Content.
-	 * @param string $form    Form.
-	 * @param string $element Element.
+	 * @param string             $content Content.
+	 * @param MC4WP_Form         $form    Form.
+	 * @param MC4WP_Form_Element $element Element.
 	 *
 	 * @return string
 	 * @noinspection PhpUnusedParameterInspection
@@ -79,6 +79,10 @@ public function add_captcha( $content, $form, $element ) {
 		$args = [
 			'action' => self::ACTION,
 			'name'   => self::NAME,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => $form->ID,
+			],
 		];
 
 		return str_replace(
@@ -92,21 +96,21 @@ public function add_captcha( $content, $form, $element ) {
 	/**
 	 * Verify MailChimp captcha.
 	 *
-	 * @param bool  $valid Whether request is valid.
-	 * @param array $data  Form data.
+	 * @param array      $errors Errors.
+	 * @param MC4WP_Form $form   Form.
 	 *
-	 * @return null|string
+	 * @return array
 	 * @noinspection PhpUnusedParameterInspection
 	 */
-	public function verify( $valid, $data ) {
+	public function verify( $errors, $form ) {
 		$error_message = hcaptcha_verify_post( self::NAME, self::ACTION );
-		$error_message = preg_replace( '/(.+: )?/', '', $error_message );
-		$error_code    = false;
 
 		if ( null !== $error_message ) {
 			$error_code = array_search( $error_message, hcap_get_error_messages(), true );
+			$error_code = $error_code ?: 'empty';
+			$errors[]   = $error_code;
 		}
 
-		return $error_code ?: $valid;
+		return $errors;
 	}
 }
diff --git a/src/php/Main.php b/src/php/Main.php
index 2fe41113..2073ac28 100644
--- a/src/php/Main.php
+++ b/src/php/Main.php
@@ -28,6 +28,7 @@
 use HCaptcha\Settings\General;
 use HCaptcha\Settings\Integrations;
 use HCaptcha\Settings\Settings;
+use HCaptcha\Settings\SystemInfo;
 use HCaptcha\WCWishlists\CreateList;
 use HCaptcha\WP\PasswordProtected;
 
@@ -137,7 +138,11 @@ public function init() {
 	public function init_hooks() {
 		$this->settings = new Settings(
 			[
-				'hCaptcha' => [ General::class, Integrations::class ],
+				'hCaptcha' => [
+					General::class,
+					Integrations::class,
+					SystemInfo::class,
+				],
 			]
 		);
 
@@ -302,6 +307,9 @@ public function print_inline_styles() {
 		ob_get_clean();
 		?>
 		<style>
+			#wpdiscuz-subscribe-form .h-captcha {
+				margin-left: auto;
+			}
 			div.wpforms-container-full .wpforms-form .h-captcha,
 			#wpforo #wpforo-wrap div .h-captcha,
 			.h-captcha {
@@ -711,6 +719,26 @@ public function load_modules() {
 				'buddypress/bp-loader.php',
 				BuddyPress\Register::class,
 			],
+			'Classified Listing Contact'        => [
+				[ 'classified_listing_status', 'contact' ],
+				'classified-listing/classified-listing.php',
+				ClassifiedListing\Contact::class,
+			],
+			'Classified Listing Login'          => [
+				[ 'classified_listing_status', 'login' ],
+				'classified-listing/classified-listing.php',
+				ClassifiedListing\Login::class,
+			],
+			'Classified Listing Lost Password'  => [
+				[ 'classified_listing_status', 'lost_pass' ],
+				'classified-listing/classified-listing.php',
+				ClassifiedListing\LostPassword::class,
+			],
+			'Classified Listing Register'       => [
+				[ 'classified_listing_status', 'register' ],
+				'classified-listing/classified-listing.php',
+				ClassifiedListing\Register::class,
+			],
 			'Colorlib Customizer Login'         => [
 				[ 'colorlib_customizer_status', 'login' ],
 				'colorlib-login-customizer/colorlib-login-customizer.php',
@@ -766,6 +794,11 @@ public function load_modules() {
 				'fluentform/fluentform.php',
 				FluentForm\Form::class,
 			],
+			'Formidable Forms'                  => [
+				[ 'formidable_forms_status', 'form' ],
+				'formidable/formidable.php',
+				FormidableForms\Form::class,
+			],
 			'Forminator'                        => [
 				[ 'forminator_status', 'form' ],
 				'forminator/forminator.php',
@@ -816,6 +849,16 @@ public function load_modules() {
 				'otter-blocks/otter-blocks.php',
 				Otter\Form::class,
 			],
+			'Paid Memberships Pro Checkout'     => [
+				[ 'paid_memberships_pro_status', 'checkout' ],
+				'paid-memberships-pro/paid-memberships-pro.php',
+				PaidMembershipsPro\Checkout::class,
+			],
+			'Paid Memberships Pro Login'        => [
+				[ 'paid_memberships_pro_status', 'login' ],
+				'paid-memberships-pro/paid-memberships-pro.php',
+				PaidMembershipsPro\Login::class,
+			],
 			'Quform'                            => [
 				[ 'quform_status', 'form' ],
 				'quform/quform.php',
@@ -891,10 +934,15 @@ public function load_modules() {
 				[ 'wpforms/wpforms.php', 'wpforms-lite/wpforms.php' ],
 				\HCaptcha\WPForms\Form::class,
 			],
-			'wpDiscuz'                          => [
+			'wpDiscuz Comment'                  => [
 				[ 'wpdiscuz_status', 'comment_form' ],
-				[ 'wpdiscuz/class.WpdiscuzCore.php' ],
-				WPDiscuz\Form::class,
+				'wpdiscuz/class.WpdiscuzCore.php',
+				WPDiscuz\Comment::class,
+			],
+			'wpDiscuz Subscribe'                => [
+				[ 'wpdiscuz_status', 'subscribe_form' ],
+				'wpdiscuz/class.WpdiscuzCore.php',
+				WPDiscuz\Subscribe::class,
 			],
 			'wpForo New Topic'                  => [
 				[ 'wpforo_status', 'new_topic' ],
diff --git a/src/php/MemberPress/Login.php b/src/php/MemberPress/Login.php
index badd6f53..d66af8fa 100644
--- a/src/php/MemberPress/Login.php
+++ b/src/php/MemberPress/Login.php
@@ -7,45 +7,79 @@
 
 namespace HCaptcha\MemberPress;
 
+use HCaptcha\Abstracts\LoginBase;
 use HCaptcha\Helpers\HCaptcha;
+use WP_Error;
+use WP_User;
 
 /**
  * Class Login
  */
-class Login {
+class Login extends LoginBase {
 	/**
 	 * Nonce action.
 	 */
-	const ACTION = 'hcaptcha_memberpress_register';
+	const ACTION = 'hcaptcha_memberpress_login';
 
 	/**
 	 * Nonce name.
 	 */
-	const NONCE = 'hcaptcha_memberpress_register_nonce';
-
-	/**
-	 * Constructor.
-	 */
-	public function __construct() {
-		$this->init_hooks();
-	}
+	const NONCE = 'hcaptcha_memberpress_login_nonce';
 
 	/**
 	 * Init hooks.
 	 */
-	private function init_hooks() {
+	protected function init_hooks() {
+		parent::init_hooks();
+
 		add_action( 'mepr-login-form-before-submit', [ $this, 'add_captcha' ] );
+		add_action( 'wp_authenticate_user', [ $this, 'verify' ], 10, 2 );
 	}
 
 	/**
 	 * Add hCaptcha to the Register form.
 	 */
 	public function add_captcha() {
+		if ( ! $this->is_login_limit_exceeded() ) {
+			return;
+		}
+
 		$args = [
 			'action' => self::ACTION,
 			'name'   => self::NONCE,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => 'login',
+			],
 		];
 
 		HCaptcha::form_display( $args );
 	}
+
+	/**
+	 * Verify login form.
+	 *
+	 * @param WP_User|WP_Error $user     WP_User or WP_Error object if a previous
+	 *                                   callback failed authentication.
+	 * @param string           $password Password to check against the user.
+	 *
+	 * @return WP_User|WP_Error
+	 * @noinspection PhpUnusedParameterInspection
+	 */
+	public function verify( $user, $password ) {
+		if ( ! $this->is_login_limit_exceeded() ) {
+			return $user;
+		}
+
+		$error_message = hcaptcha_get_verify_message_html(
+			self::NONCE,
+			self::ACTION
+		);
+
+		if ( null === $error_message ) {
+			return $user;
+		}
+
+		return new WP_Error( 'invalid_hcaptcha', $error_message, 400 );
+	}
 }
diff --git a/src/php/MemberPress/Register.php b/src/php/MemberPress/Register.php
index 65460627..3e29f1ab 100644
--- a/src/php/MemberPress/Register.php
+++ b/src/php/MemberPress/Register.php
@@ -45,6 +45,10 @@ public function add_captcha() {
 		$args = [
 			'action' => self::ACTION,
 			'name'   => self::NONCE,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => 'register',
+			],
 		];
 
 		HCaptcha::form_display( $args );
diff --git a/src/php/NF/Fields.php b/src/php/NF/Fields.php
index 7b73bf76..23c826e8 100644
--- a/src/php/NF/Fields.php
+++ b/src/php/NF/Fields.php
@@ -66,7 +66,6 @@ public function __construct() {
 	 * @param mixed $data  Data.
 	 *
 	 * @return null|string
-	 * @noinspection PhpUnusedParameterInspection
 	 */
 	public function validate( $field, $data ) {
 		$value = isset( $field['value'] ) ? $field['value'] : '';
diff --git a/src/php/NF/NF.php b/src/php/NF/NF.php
index bba94c14..25d29e8d 100644
--- a/src/php/NF/NF.php
+++ b/src/php/NF/NF.php
@@ -7,11 +7,19 @@
 
 namespace HCaptcha\NF;
 
+use HCaptcha\Helpers\HCaptcha;
+
 /**
  * Class NF
  * Support Ninja Forms.
  */
 class NF {
+	/**
+	 * Form id.
+	 *
+	 * @var int
+	 */
+	private $form_id = 0;
 
 	/**
 	 * NF constructor.
@@ -26,6 +34,7 @@ public function __construct() {
 	public function init_hooks() {
 		add_filter( 'ninja_forms_register_fields', [ $this, 'register_fields' ] );
 		add_filter( 'ninja_forms_field_template_file_paths', [ $this, 'template_file_paths' ] );
+		add_action( 'nf_get_form_id', [ $this, 'set_form_id' ] );
 		add_filter( 'ninja_forms_localize_field_hcaptcha-for-ninja-forms', [ $this, 'localize_field' ] );
 		add_action( 'wp_enqueue_scripts', [ $this, 'nf_captcha_script' ] );
 	}
@@ -56,6 +65,17 @@ public function template_file_paths( $paths ) {
 		return $paths;
 	}
 
+	/**
+	 * Get form id.
+	 *
+	 * @param int $form_id Form id.
+	 *
+	 * @return void
+	 */
+	public function set_form_id( $form_id ) {
+		$this->form_id = $form_id;
+	}
+
 	/**
 	 * Filter ninja_forms_localize_field_hcaptcha-for-ninja-forms.
 	 *
@@ -65,23 +85,32 @@ public function template_file_paths( $paths ) {
 	 */
 	public function localize_field( $field ) {
 
-		$settings                            = hcaptcha()->settings();
-		$field['settings']['hcaptcha_id']    = uniqid( 'hcaptcha-nf-', true );
-		$field['settings']['hcaptcha_key']   = $settings->get_site_key();
-		$field['settings']['hcaptcha_theme'] = $settings->get( 'theme' );
-		$hcaptcha_size                       = $settings->get( 'size' );
+		$settings                         = hcaptcha()->settings();
+		$hcaptcha_id                      = uniqid( 'hcaptcha-nf-', true );
+		$field['settings']['hcaptcha_id'] = $hcaptcha_id;
+		$hcaptcha_size                    = $settings->get( 'size' );
 
 		// Invisible is not supported by Ninja Forms so far.
 		$hcaptcha_size = 'invisible' === $hcaptcha_size ? 'normal' : $hcaptcha_size;
 
-		$field['settings']['hcaptcha_size']        = $hcaptcha_size;
-		$field['settings']['hcaptcha_nonce_field'] = wp_nonce_field(
-			'hcaptcha_nf',
-			'hcaptcha_nf_nonce',
-			true,
-			false
+		// Nonce is checked by Ninja forms.
+		$args = [
+			'id'   => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => $this->form_id,
+			],
+			'size' => $hcaptcha_size,
+		];
+
+		$hcaptcha = HCaptcha::form( $args );
+		$hcaptcha = str_replace(
+			'<div',
+			'<div id="' . $hcaptcha_id . '" data-fieldId="' . $field['id'] . '"',
+			$hcaptcha
 		);
 
+		$field['settings']['hcaptcha'] = $hcaptcha;
+
 		hcaptcha()->form_shown = true;
 
 		return $field;
diff --git a/src/php/NF/templates/fields-hcaptcha.html b/src/php/NF/templates/fields-hcaptcha.html
index 1e24c87c..288f9ff5 100644
--- a/src/php/NF/templates/fields-hcaptcha.html
+++ b/src/php/NF/templates/fields-hcaptcha.html
@@ -2,10 +2,5 @@
 	<input id="nf-field-{{{ data.id }}}" name="nf-field-{{{ data.id }}}" class="{{{ data.renderClasses() }}} nf-element"
 		   type="hidden" value="{{{ data.value }}}"/>
 
-	<div id="{{{ data.hcaptcha_id }}}" class="h-captcha" data-sitekey="{{{ data.hcaptcha_key }}}"
-		 data-theme="{{{ data.hcaptcha_theme }}}" data-size="{{{ data.hcaptcha_size }}}"
-		 data-fieldid="{{{ data.id }}}">
-	</div>
-
-	{{{ data.hcaptcha_nonce_field }}}
+	{{{ data.hcaptcha }}}
 </script>
diff --git a/src/php/PaidMembershipsPro/Checkout.php b/src/php/PaidMembershipsPro/Checkout.php
new file mode 100644
index 00000000..6621ba6b
--- /dev/null
+++ b/src/php/PaidMembershipsPro/Checkout.php
@@ -0,0 +1,86 @@
+<?php
+/**
+ * Checkout class file.
+ *
+ * @package hcaptcha-wp
+ */
+
+namespace HCaptcha\PaidMembershipsPro;
+
+use HCaptcha\Helpers\HCaptcha;
+use WP_Error;
+use WP_User;
+
+/**
+ * Class Checkout.
+ */
+class Checkout {
+
+	/**
+	 * Nonce action.
+	 */
+	const ACTION = 'hcaptcha_pmpro_checkout';
+
+	/**
+	 * Nonce name.
+	 */
+	const NONCE = 'hcaptcha_pmpro_checkout_nonce';
+
+	/**
+	 * Constructor.
+	 */
+	public function __construct() {
+		$this->init_hooks();
+	}
+
+	/**
+	 * Init hooks.
+	 */
+	protected function init_hooks() {
+		add_action( 'pmpro_checkout_before_submit_button', [ $this, 'add_captcha' ] );
+		add_action( 'pmpro_checkout_after_parameters_set', [ $this, 'verify' ] );
+	}
+
+	/**
+	 * Add captcha.
+	 */
+	public function add_captcha() {
+		$args = [
+			'action' => self::ACTION,
+			'name'   => self::NONCE,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => 'checkout',
+			],
+		];
+
+		HCaptcha::form_display( $args );
+	}
+
+	/**
+	 * Verify login form.
+	 *
+	 * @return void
+	 */
+	public function verify() {
+		global $pmpro_msg, $pmpro_msgt;
+
+		$submit = pmpro_was_checkout_form_submitted();
+
+		if ( ! $submit ) {
+			return;
+		}
+
+		$error_message = hcaptcha_verify_post(
+			self::NONCE,
+			self::ACTION
+		);
+
+		if ( null === $error_message ) {
+			return;
+		}
+
+		$pmpro_msg  = $error_message;
+		$pmpro_msgt = 'pmpro_error';
+	}
+}
diff --git a/src/php/PaidMembershipsPro/Login.php b/src/php/PaidMembershipsPro/Login.php
new file mode 100644
index 00000000..446cfba9
--- /dev/null
+++ b/src/php/PaidMembershipsPro/Login.php
@@ -0,0 +1,120 @@
+<?php
+/**
+ * Login class file.
+ *
+ * @package hcaptcha-wp
+ */
+
+namespace HCaptcha\PaidMembershipsPro;
+
+use HCaptcha\Abstracts\LoginBase;
+use HCaptcha\Helpers\HCaptcha;
+use WP_Error;
+use WP_User;
+
+/**
+ * Class Login.
+ */
+class Login extends LoginBase {
+
+	/**
+	 * Nonce action.
+	 */
+	const ACTION = 'hcaptcha_login';
+
+	/**
+	 * Nonce name.
+	 */
+	const NONCE = 'hcaptcha_login_nonce';
+
+	/**
+	 * Init hooks.
+	 */
+	protected function init_hooks() {
+		parent::init_hooks();
+
+		$pmpro_page_name = 'login';
+
+		add_filter( 'pmpro_pages_shortcode_' . $pmpro_page_name, [ $this, 'add_captcha' ] );
+		add_action( 'wp_authenticate_user', [ $this, 'verify' ], 10, 2 );
+	}
+
+	/**
+	 * Add captcha.
+	 *
+	 * @param string $content Content of the PMPro login page.
+	 */
+	public function add_captcha( $content ) {
+		if ( ! $this->is_login_limit_exceeded() ) {
+			return $content;
+		}
+
+		// phpcs:disable WordPress.Security.NonceVerification.Recommended
+		$action = isset( $_GET['action'] ) ?
+			sanitize_text_field( wp_unslash( $_GET['action'] ) ) :
+			'';
+		// phpcs:enable WordPress.Security.NonceVerification.Recommended
+
+		$error_messages = hcap_get_error_messages();
+		$hcap_error     = array_key_exists( $action, $error_messages );
+
+		if ( $hcap_error ) {
+			$search        = '<div class="pmpro_login_wrap">';
+			$error_message = '<div class="pmpro_message pmpro_error">' . $error_messages[ $action ] . '</div>';
+			$content       = str_replace( $search, $error_message . $search, $content );
+		}
+
+		$args = [
+			'action' => self::ACTION,
+			'name'   => self::NONCE,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( __CLASS__ ),
+				'form_id' => 'login',
+			],
+		];
+
+		$search = '<p class="login-submit">';
+
+		return str_replace( $search, HCaptcha::form( $args ) . $search, $content );
+	}
+
+	/**
+	 * Verify login form.
+	 *
+	 * @param WP_User|WP_Error $user     WP_User or WP_Error object if a previous
+	 *                                   callback failed authentication.
+	 * @param string           $password Password to check against the user.
+	 *
+	 * @return WP_User|WP_Error
+	 * @noinspection PhpUnusedParameterInspection
+	 */
+	public function verify( $user, $password ) {
+		// phpcs:disable WordPress.Security.NonceVerification.Missing
+		$pmpro_login_form_used = isset( $_POST['pmpro_login_form_used'] ) ?
+			sanitize_text_field( wp_unslash( $_POST['pmpro_login_form_used'] ) ) :
+			'';
+		// phpcs:enable WordPress.Security.NonceVerification.Missing
+
+		if ( ! $pmpro_login_form_used ) {
+			return $user;
+		}
+
+		if ( ! $this->is_login_limit_exceeded() ) {
+			return $user;
+		}
+
+		$error_message = hcaptcha_verify_post(
+			self::NONCE,
+			self::ACTION
+		);
+
+		if ( null === $error_message ) {
+			return $user;
+		}
+
+		$code = array_search( $error_message, hcap_get_error_messages(), true );
+		$code = $code ?: 'fail';
+
+		return new WP_Error( $code, $error_message, 400 );
+	}
+}
diff --git a/src/php/Quform/Quform.php b/src/php/Quform/Quform.php
index c2c0459e..00b9bf0d 100644
--- a/src/php/Quform/Quform.php
+++ b/src/php/Quform/Quform.php
@@ -29,6 +29,11 @@ class Quform {
 	 */
 	const NONCE = 'hcaptcha_quform_nonce';
 
+	/**
+	 * Max form element id.
+	 */
+	const MAX_ID = '9999_9999';
+
 	/**
 	 * Quform constructor.
 	 */
@@ -55,14 +60,13 @@ public function init_hooks() {
 	 * @param array        $m      Regular expression match array.
 	 *
 	 * @return string
-	 * @noinspection PhpUnusedParameterInspection
 	 */
 	public function add_hcaptcha( $output, $tag, $attr, $m ) {
 		if ( 'quform' !== $tag ) {
 			return $output;
 		}
 
-		$max_id = '9999_9999';
+		$max_id = self::MAX_ID;
 
 		if ( preg_match_all( '/quform-element-(\d+?)_(\d+)\D/', $output, $m ) ) {
 			$element_ids = array_map( 'intval', array_unique( $m[2] ) );
@@ -79,6 +83,10 @@ public function add_hcaptcha( $output, $tag, $attr, $m ) {
 						$args = [
 							'action' => self::ACTION,
 							'name'   => self::NONCE,
+							'id'     => [
+								'source'  => HCaptcha::get_class_source( static::class ),
+								'form_id' => (int) $attr['id'],
+							],
 						];
 
 						HCaptcha::form_display( $args );
@@ -140,7 +148,7 @@ public function verify( $result, $form ) {
 	 * @return string
 	 */
 	private function get_max_element_id( $page ) {
-		$max_id = '9999_9999';
+		$max_id = self::MAX_ID;
 
 		if ( null === $page ) {
 			return $max_id;
diff --git a/src/php/Sendinblue/Sendinblue.php b/src/php/Sendinblue/Sendinblue.php
index 2da2779a..3588b96e 100644
--- a/src/php/Sendinblue/Sendinblue.php
+++ b/src/php/Sendinblue/Sendinblue.php
@@ -51,6 +51,10 @@ public function add_hcaptcha( $output, $tag, $attr, $m ) {
 			'action' => HCAPTCHA_ACTION,
 			'name'   => HCAPTCHA_NONCE,
 			'auto'   => true,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( static::class ),
+				'form_id' => (int) $attr['id'],
+			],
 		];
 
 		$hcaptcha = HCaptcha::form( $args );
diff --git a/src/php/Settings/Abstracts/SettingsBase.php b/src/php/Settings/Abstracts/SettingsBase.php
index d02df907..903d39e1 100644
--- a/src/php/Settings/Abstracts/SettingsBase.php
+++ b/src/php/Settings/Abstracts/SettingsBase.php
@@ -31,7 +31,7 @@ abstract class SettingsBase {
 	 *
 	 * @var array
 	 */
-	protected $form_fields;
+	protected $form_fields = [];
 
 	/**
 	 * Plugin options.
@@ -43,7 +43,7 @@ abstract class SettingsBase {
 	/**
 	 * Tabs of this settings page.
 	 *
-	 * @var array|null
+	 * @var array
 	 */
 	protected $tabs;
 
@@ -117,11 +117,6 @@ abstract protected function settings_link_label();
 	 */
 	abstract protected function settings_link_text();
 
-	/**
-	 * Init form fields.
-	 */
-	abstract protected function init_form_fields();
-
 	/**
 	 * Get page title.
 	 *
@@ -155,11 +150,6 @@ abstract protected function section_title();
 	 */
 	abstract public function section_callback( $arguments );
 
-	/**
-	 * Enqueue scripts in admin.
-	 */
-	abstract public function admin_enqueue_scripts();
-
 	/**
 	 * Get text domain.
 	 *
@@ -217,6 +207,13 @@ protected function init_hooks() {
 		add_action( 'admin_enqueue_scripts', [ $this, 'base_admin_enqueue_scripts' ] );
 	}
 
+	/**
+	 * Init form fields.
+	 */
+	public function init_form_fields() {
+		$this->form_fields = [];
+	}
+
 	/**
 	 * Get parent slug.
 	 *
@@ -418,11 +415,21 @@ public function settings_base_page() {
 		$this->get_active_tab()->settings_page();
 	}
 
+	/**
+	 * Enqueue scripts in admin.
+	 */
+	public function admin_enqueue_scripts() {
+	}
+
 	/**
 	 * Enqueue relevant admin_enqueue_scripts() basing on tabs.
 	 * Enqueue admin style.
 	 */
 	public function base_admin_enqueue_scripts() {
+		if ( ! $this->is_options_screen() ) {
+			return;
+		}
+
 		$this->get_active_tab()->admin_enqueue_scripts();
 
 		wp_enqueue_style(
@@ -443,6 +450,17 @@ public function setup_sections() {
 
 		$tab = $this->get_active_tab();
 
+		if ( empty( $this->form_fields ) ) {
+			add_settings_section(
+				$this->section_title(),
+				'',
+				[ $tab, 'section_callback' ],
+				$tab->option_page()
+			);
+
+			return;
+		}
+
 		foreach ( $this->form_fields as $form_field ) {
 			add_settings_section(
 				$form_field['section'],
@@ -565,7 +583,7 @@ protected function wp_parse_str( $input_string ) {
 	/**
 	 * Get tabs.
 	 *
-	 * @return array|null
+	 * @return array
 	 */
 	public function get_tabs() {
 		return $this->tabs;
@@ -621,18 +639,25 @@ public function setup_fields() {
 	 */
 	private function print_text_field( array $arguments ) {
 		$value        = $this->get( $arguments['field_id'] );
-		$autocomplete = 'password' === $arguments['type'] ? 'off' : '';
+		$autocomplete = '';
+		$lp_ignore    = 'false';
+
+		if ( 'password' === $arguments['type'] ) {
+			$autocomplete = 'new-password';
+			$lp_ignore    = 'true';
+		}
 
 		printf(
 			'<input %1$s name="%2$s[%3$s]" id="%3$s" type="%4$s"' .
-			' placeholder="%5$s" value="%6$s" autocomplete="%7$s" class="regular-text" />',
+			' placeholder="%5$s" value="%6$s" autocomplete="%7$s" data-lpignore="%8$s" class="regular-text" />',
 			disabled( $arguments['disabled'], true, false ),
 			esc_html( $this->option_name() ),
 			esc_attr( $arguments['field_id'] ),
 			esc_attr( $arguments['type'] ),
 			esc_attr( $arguments['placeholder'] ),
 			esc_html( $value ),
-			esc_attr( $autocomplete )
+			esc_attr( $autocomplete ),
+			esc_attr( $lp_ignore )
 		);
 	}
 
@@ -959,7 +984,7 @@ public function field_callback( array $arguments ) {
 			'table'    => 'print_table_field',
 		];
 
-		$type = $arguments['type'];
+		$type = isset( $arguments['type'] ) ? $arguments['type'] : '';
 
 		if ( ! array_key_exists( $type, $types ) ) {
 			return;
diff --git a/src/php/Settings/General.php b/src/php/Settings/General.php
index 7ad61d60..d8ed2bcc 100644
--- a/src/php/Settings/General.php
+++ b/src/php/Settings/General.php
@@ -61,42 +61,6 @@ class General extends PluginSettingsBase {
 	 */
 	const MODE_TEST_ENTERPRISE_BOT_DETECTED = 'test:enterprise_bot_detected';
 
-	/**
-	 * Get screen id.
-	 *
-	 * @return string
-	 */
-	public function screen_id() {
-		return 'settings_page_hcaptcha';
-	}
-
-	/**
-	 * Get option group.
-	 *
-	 * @return string
-	 */
-	protected function option_group() {
-		return 'hcaptcha_group';
-	}
-
-	/**
-	 * Get option page.
-	 *
-	 * @return string
-	 */
-	protected function option_page() {
-		return 'hcaptcha';
-	}
-
-	/**
-	 * Get option name.
-	 *
-	 * @return string
-	 */
-	protected function option_name() {
-		return 'hcaptcha_settings';
-	}
-
 	/**
 	 * Get page title.
 	 *
@@ -106,15 +70,6 @@ protected function page_title() {
 		return __( 'General', 'hcaptcha-for-forms-and-more' );
 	}
 
-	/**
-	 * Get menu title.
-	 *
-	 * @return string
-	 */
-	protected function menu_title() {
-		return __( 'hCaptcha', 'hcaptcha-for-forms-and-more' );
-	}
-
 	/**
 	 * Get section title.
 	 *
@@ -471,10 +426,6 @@ private function print_section_header( $id, $title ) {
 	 * Enqueue class scripts.
 	 */
 	public function admin_enqueue_scripts() {
-		if ( ! $this->is_options_screen() ) {
-			return;
-		}
-
 		wp_enqueue_style(
 			self::HANDLE,
 			constant( 'HCAPTCHA_URL' ) . "/assets/css/general$this->min_prefix.css",
diff --git a/src/php/Settings/Integrations.php b/src/php/Settings/Integrations.php
index c00b6463..6e04235c 100644
--- a/src/php/Settings/Integrations.php
+++ b/src/php/Settings/Integrations.php
@@ -10,9 +10,9 @@
 use HCaptcha\Settings\Abstracts\SettingsBase;
 
 /**
- * Class Tables
+ * Class Integrations
  *
- * Settings page "Integrations" (main).
+ * Settings page "Integrations".
  */
 class Integrations extends PluginSettingsBase {
 
@@ -32,45 +32,14 @@ class Integrations extends PluginSettingsBase {
 	const OBJECT = 'HCaptchaIntegrationsObject';
 
 	/**
-	 * Disabled section id.
-	 */
-	const SECTION_DISABLED = 'disabled';
-
-	/**
-	 * Get screen id.
-	 *
-	 * @return string
-	 */
-	public function screen_id() {
-		return 'settings_page_hcaptcha';
-	}
-
-	/**
-	 * Get option group.
-	 *
-	 * @return string
+	 * Enabled section id.
 	 */
-	protected function option_group() {
-		return 'hcaptcha_group';
-	}
+	const SECTION_ENABLED = 'enabled';
 
 	/**
-	 * Get option page.
-	 *
-	 * @return string
-	 */
-	protected function option_page() {
-		return 'hcaptcha';
-	}
-
-	/**
-	 * Get option name.
-	 *
-	 * @return string
+	 * Disabled section id.
 	 */
-	protected function option_name() {
-		return 'hcaptcha_settings';
-	}
+	const SECTION_DISABLED = 'disabled';
 
 	/**
 	 * Get page title.
@@ -81,15 +50,6 @@ protected function page_title() {
 		return __( 'Integrations', 'hcaptcha-for-forms-and-more' );
 	}
 
-	/**
-	 * Get menu title.
-	 *
-	 * @return string
-	 */
-	protected function menu_title() {
-		return __( 'hCaptcha', 'hcaptcha-for-forms-and-more' );
-	}
-
 	/**
 	 * Get section title.
 	 *
@@ -183,6 +143,16 @@ public function init_form_fields() {
 					'registration' => __( 'Registration Form', 'hcaptcha-for-forms-and-more' ),
 				],
 			],
+			'classified_listing_status'     => [
+				'label'   => 'Classified Listing',
+				'type'    => 'checkbox',
+				'options' => [
+					'contact'   => __( 'Contact Form', 'hcaptcha-for-forms-and-more' ),
+					'login'     => __( 'Login Form', 'hcaptcha-for-forms-and-more' ),
+					'lost_pass' => __( 'Lost Password Form', 'hcaptcha-for-forms-and-more' ),
+					'register'  => __( 'Register Form', 'hcaptcha-for-forms-and-more' ),
+				],
+			],
 			'colorlib_customizer_status'    => [
 				'label'   => 'Colorlib Login Customizer',
 				'type'    => 'checkbox',
@@ -230,6 +200,13 @@ public function init_form_fields() {
 					'form' => __( 'Form', 'hcaptcha-for-forms-and-more' ),
 				],
 			],
+			'formidable_forms_status'       => [
+				'label'   => 'Formidable Forms',
+				'type'    => 'checkbox',
+				'options' => [
+					'form' => __( 'Form', 'hcaptcha-for-forms-and-more' ),
+				],
+			],
 			'forminator_status'             => [
 				'label'   => 'Forminator',
 				'type'    => 'checkbox',
@@ -294,6 +271,14 @@ public function init_form_fields() {
 					'form' => __( 'Form', 'hcaptcha-for-forms-and-more' ),
 				],
 			],
+			'paid_memberships_pro_status'   => [
+				'label'   => 'Paid Memberships Pro',
+				'type'    => 'checkbox',
+				'options' => [
+					'checkout' => __( 'Checkout Form', 'hcaptcha-for-forms-and-more' ),
+					'login'    => __( 'Login Form', 'hcaptcha-for-forms-and-more' ),
+				],
+			],
 			'quform_status'                 => [
 				'label'   => 'Quform',
 				'type'    => 'checkbox',
@@ -361,7 +346,8 @@ public function init_form_fields() {
 				'label'   => 'WPDiscuz',
 				'type'    => 'checkbox',
 				'options' => [
-					'comment_form' => __( 'Comment Form', 'hcaptcha-for-forms-and-more' ),
+					'comment_form'   => __( 'Comment Form', 'hcaptcha-for-forms-and-more' ),
+					'subscribe_form' => __( 'Subscribe Form', 'hcaptcha-for-forms-and-more' ),
 				],
 			],
 			'wpforo_status'                 => [
@@ -400,8 +386,35 @@ public function setup_fields() {
 			return;
 		}
 
+		$this->form_fields = $this->sort_fields( $this->form_fields );
+
+		foreach ( $this->form_fields as &$form_field ) {
+			if ( isset( $form_field['label'] ) ) {
+				$form_field['label'] = $this->logo( $form_field['label'] );
+			}
+
+			if ( $form_field['disabled'] ) {
+				$form_field['section'] = self::SECTION_DISABLED;
+			} else {
+				$form_field['section'] = self::SECTION_ENABLED;
+			}
+		}
+
+		unset( $form_field );
+
+		parent::setup_fields();
+	}
+
+	/**
+	 * Sort fields. First, by enabled status, then by label.
+	 *
+	 * @param array $fields Fields.
+	 *
+	 * @return array
+	 */
+	public function sort_fields( $fields ) {
 		uasort(
-			$this->form_fields,
+			$fields,
 			static function ( $a, $b ) {
 				$a_disabled = isset( $a['disabled'] ) ? $a['disabled'] : false;
 				$b_disabled = isset( $b['disabled'] ) ? $b['disabled'] : false;
@@ -421,19 +434,7 @@ static function ( $a, $b ) {
 			}
 		);
 
-		foreach ( $this->form_fields as &$form_field ) {
-			if ( isset( $form_field['label'] ) ) {
-				$form_field['label'] = $this->logo( $form_field['label'] );
-			}
-
-			if ( $form_field['disabled'] ) {
-				$form_field['section'] = self::SECTION_DISABLED;
-			}
-		}
-
-		unset( $form_field );
-
-		parent::setup_fields();
+		return $fields;
 	}
 
 	/**
@@ -493,10 +494,6 @@ public function section_callback( $arguments ) {
 	 * Enqueue class scripts.
 	 */
 	public function admin_enqueue_scripts() {
-		if ( ! $this->is_options_screen() ) {
-			return;
-		}
-
 		wp_enqueue_script(
 			self::HANDLE,
 			constant( 'HCAPTCHA_URL' ) . "/assets/js/integrations$this->min_prefix.js",
diff --git a/src/php/Settings/PluginSettingsBase.php b/src/php/Settings/PluginSettingsBase.php
index 1ac5be27..e006c213 100644
--- a/src/php/Settings/PluginSettingsBase.php
+++ b/src/php/Settings/PluginSettingsBase.php
@@ -28,6 +28,51 @@ public function __construct( $tabs = [] ) {
 		parent::__construct( $tabs );
 	}
 
+	/**
+	 * Get menu title.
+	 *
+	 * @return string
+	 */
+	protected function menu_title() {
+		return __( 'hCaptcha', 'hcaptcha-for-forms-and-more' );
+	}
+
+	/**
+	 * Get screen id.
+	 *
+	 * @return string
+	 */
+	public function screen_id() {
+		return 'settings_page_hcaptcha';
+	}
+
+	/**
+	 * Get option group.
+	 *
+	 * @return string
+	 */
+	protected function option_group() {
+		return 'hcaptcha_group';
+	}
+
+	/**
+	 * Get option page.
+	 *
+	 * @return string
+	 */
+	protected function option_page() {
+		return 'hcaptcha';
+	}
+
+	/**
+	 * Get option name.
+	 *
+	 * @return string
+	 */
+	protected function option_name() {
+		return 'hcaptcha_settings';
+	}
+
 	/**
 	 * Get plugin base name.
 	 *
@@ -86,7 +131,7 @@ protected function text_domain() {
 	 * Setup settings fields.
 	 */
 	public function setup_fields() {
-		$prefix = static::option_page() . '-' . static::section_title() . '-';
+		$prefix = $this->option_page() . '-' . static::section_title() . '-';
 
 		foreach ( $this->form_fields as $key => $form_field ) {
 			if ( ! isset( $form_field['class'] ) ) {
@@ -117,7 +162,10 @@ class="hcaptcha-<?php echo esc_attr( $this->section_title() ); ?>"
 				<?php
 				do_settings_sections( $this->option_page() ); // Sections with options.
 				settings_fields( $this->option_group() ); // Hidden protection fields.
-				submit_button();
+
+				if ( ! empty( $this->form_fields ) ) {
+					submit_button();
+				}
 				?>
 			</form>
 		</div>
diff --git a/src/php/Settings/Settings.php b/src/php/Settings/Settings.php
index 17d99684..dfa6f00d 100644
--- a/src/php/Settings/Settings.php
+++ b/src/php/Settings/Settings.php
@@ -79,6 +79,15 @@ protected function init() {
 		$this->tabs = array_merge( [], ...$this->tabs );
 	}
 
+	/**
+	 * Get tabs.
+	 *
+	 * @return array
+	 */
+	public function get_tabs() {
+		return $this->tabs;
+	}
+
 	/**
 	 * Get plugin option.
 	 *
diff --git a/src/php/Settings/SystemInfo.php b/src/php/Settings/SystemInfo.php
new file mode 100644
index 00000000..87d3d54f
--- /dev/null
+++ b/src/php/Settings/SystemInfo.php
@@ -0,0 +1,536 @@
+<?php
+/**
+ * Integrations class file.
+ *
+ * @package hcaptcha-wp
+ */
+
+namespace HCaptcha\Settings;
+
+use HCaptcha\Settings\Abstracts\SettingsBase;
+
+/**
+ * Class SystemInfo
+ *
+ * Settings page "SystemInfo".
+ */
+class SystemInfo extends PluginSettingsBase {
+
+	/**
+	 * Admin script handle.
+	 */
+	const HANDLE = 'hcaptcha-system-info';
+
+	/**
+	 * Script localization object.
+	 */
+	const OBJECT = 'HCaptchaSystemInfoObject';
+
+	/**
+	 * Data key length.
+	 */
+	const DATA_KEY_LENGTH = 36;
+
+	/**
+	 * Get page title.
+	 *
+	 * @return string
+	 */
+	protected function page_title() {
+		return __( 'System Info', 'hcaptcha-for-forms-and-more' );
+	}
+
+	/**
+	 * Get section title.
+	 *
+	 * @return string
+	 */
+	protected function section_title() {
+		return 'system-info';
+	}
+
+	/**
+	 * Enqueue class scripts.
+	 */
+	public function admin_enqueue_scripts() {
+		wp_enqueue_script(
+			self::HANDLE,
+			constant( 'HCAPTCHA_URL' ) . "/assets/js/system-info$this->min_prefix.js",
+			[],
+			constant( 'HCAPTCHA_VERSION' ),
+			true
+		);
+
+		wp_localize_script(
+			self::HANDLE,
+			self::OBJECT,
+			[
+				'copiedMsg' => __( 'System info copied to clipboard.', 'hcaptcha-for-forms-and-more' ),
+			]
+		);
+
+		wp_enqueue_style(
+			self::HANDLE,
+			constant( 'HCAPTCHA_URL' ) . "/assets/css/system-info$this->min_prefix.css",
+			[ SettingsBase::HANDLE ],
+			constant( 'HCAPTCHA_VERSION' )
+		);
+	}
+
+	/**
+	 * Section callback.
+	 *
+	 * @param array $arguments Section arguments.
+	 */
+	public function section_callback( $arguments ) {
+		?>
+		<h2>
+			<?php echo esc_html__( 'System Information', 'hcaptcha-for-forms-and-more' ); ?>
+		</h2>
+		<div id="hcaptcha-system-info-wrap">
+			<span class="helper">
+				<span class="helper-content"><?php esc_html_e( 'Copy system info to clipboard', '' ); ?></span>
+			</span>
+			<div class="dashicons-before dashicons-media-text" aria-hidden="true"></div>
+			<label>
+			<textarea
+					id="hcaptcha-system-info"
+					readonly><?php echo esc_textarea( $this->get_system_info() ); ?></textarea>
+			</label>
+		</div>
+		<?php
+	}
+
+	/**
+	 * Get system information.
+	 *
+	 * Based on a function from WPForms.
+	 *
+	 * @return string
+	 */
+	public function get_system_info() {
+		$data = $this->header( '### Begin System Info ###' );
+
+		$data .= $this->hcaptcha_info();
+		$data .= $this->site_info();
+		$data .= $this->wp_info();
+		$data .= $this->uploads_info();
+		$data .= $this->plugins_info();
+		$data .= $this->server_info();
+
+		$data .= $this->header( '### End System Info ###' );
+
+		return $data;
+	}
+
+	/**
+	 * Get hCaptcha info.
+	 *
+	 * @return string
+	 */
+	private function hcaptcha_info() {
+		$settings = hcaptcha()->settings();
+		$data     = $this->header( '-- hCaptcha Info --' );
+
+		$data .= $this->data( 'Version', HCAPTCHA_VERSION );
+		$data .= $this->data( 'Site key', $this->is_empty( $settings->get_site_key() ) );
+		$data .= $this->data( 'Secret key', $this->is_empty( $settings->get_secret_key() ) );
+		$data .= $this->data( 'Theme', $settings->get( 'theme' ) );
+		$data .= $this->data( 'Size', $settings->get( 'size' ) );
+		$data .= $this->data( 'Language', $settings->get( 'language' ) );
+		$data .= $this->data( 'Mode', $settings->get( 'mode' ) );
+		$data .= $this->data( 'Custom Themes', $this->is_on( 'custom_themes' ) );
+		$data .= $this->data( 'Config Params', $this->is_empty( $settings->get( 'config_params' ) ) );
+		$data .= $this->data( 'Turn Off When Logged In', $this->is_on( 'off_when_logged_in' ) );
+		$data .= $this->data( 'Disable reCAPTCHA Compatibility', $this->is_on( 'recaptcha_compat_off' ) );
+		$data .= $this->data( 'Whitelisted IPs', $this->is_empty( $settings->get( 'whitelisted_ips' ) ) );
+		$data .= $this->data( 'Login attempts before hCaptcha', $settings->get( 'login_limit' ) );
+		$data .= $this->data( 'Failed login attempts interval, min', $settings->get( 'login_interval' ) );
+		$data .= $this->data( 'Delay showing hCaptcha, ms', $settings->get( 'delay' ) );
+
+		list( $integration_fields, $integration_settings ) = $this->get_integrations();
+
+		$disabled = false;
+
+		$data .= $this->header( '--- Active plugins and themes ---' );
+
+		foreach ( $integration_fields as $field_key => $field ) {
+			if ( $field['disabled'] !== $disabled ) {
+				$disabled = true;
+
+				$data .= $this->header( '--- Inactive plugins and themes ---' );
+			}
+
+			$data .= $this->data( $field['label'], '' );
+
+			foreach ( $field['options'] as $option_key => $option ) {
+				$setting = isset( $integration_settings[ $field_key ] ) ? (array) $integration_settings[ $field_key ] : [];
+				$value   = in_array( $option_key, $setting, true ) ? 'On' : 'Off';
+
+				$data .= $this->data( '  ' . $option, $value );
+			}
+		}
+
+		return $data;
+	}
+
+	/**
+	 * Get integrations.
+	 *
+	 * @return array
+	 */
+	private function get_integrations() {
+		$tabs = hcaptcha()->settings()->get_tabs();
+
+		$tabs = array_filter(
+			$tabs,
+			static function ( $tab ) {
+				return is_a( $tab, Integrations::class );
+			}
+		);
+
+		if ( ! $tabs ) {
+			return [];
+		}
+
+		$integrations_obj = array_shift( $tabs );
+		$fields           = $integrations_obj->form_fields();
+		$fields           = $integrations_obj->sort_fields( $fields );
+		$settings         = $integrations_obj->settings;
+
+		return [ $fields, $settings ];
+	}
+
+	/**
+	 * Get Site info.
+	 *
+	 * @return string
+	 */
+	private function site_info() {
+		$data = $this->header( '-- Site Info --' );
+
+		$data .= $this->data( 'Site URL', site_url() );
+		$data .= $this->data( 'Home URL', home_url() );
+		$data .= $this->data( 'Multisite', is_multisite() ? 'Yes' : 'No' );
+
+		return $data;
+	}
+
+	/**
+	 * Get WordPress Configuration info.
+	 *
+	 * @return string
+	 * @noinspection NestedTernaryOperatorInspection
+	 */
+	private function wp_info() {
+		global $wpdb;
+
+		$theme_data = wp_get_theme();
+		$theme      = $theme_data->get( 'Name' ) . ' ' . $theme_data->get( 'Version' );
+
+		$data = $this->header( '-- WordPress Configuration --' );
+
+		$data .= $this->data( 'Version', get_bloginfo( 'version' ) );
+		$data .= $this->data( 'Language', get_locale() );
+		$data .= $this->data( 'User Language', get_user_locale() );
+		$data .= $this->data( 'Permalink Structure', get_option( 'permalink_structure' ) ?: 'Default' );
+		$data .= $this->data( 'Active Theme', $theme );
+		$data .= $this->data( 'Show On Front', get_option( 'show_on_front' ) );
+
+		// Only show page specs if front page is set to 'page'.
+		if ( get_option( 'show_on_front' ) === 'page' ) {
+			$front_page_id = get_option( 'page_on_front' );
+			$blog_page_id  = get_option( 'page_for_posts' );
+			$front_page    = $front_page_id ? get_the_title( $front_page_id ) . ' (#' . $front_page_id . ')' : 'Unset';
+			$blog_page     = $blog_page_id ? get_the_title( $blog_page_id ) . ' (#' . $blog_page_id . ')' : 'Unset';
+
+			$data .= $this->data( 'Page On Front', $front_page );
+			$data .= $this->data( 'Page For Posts', $blog_page );
+		}
+
+		$data .= $this->data( 'ABSPATH', ABSPATH );
+		$data .= $this->data( 'Table Prefix', 'Length: ' . strlen( $wpdb->prefix ) . '   Status: ' . ( strlen( $wpdb->prefix ) > 16 ? 'ERROR: Too long' : 'Acceptable' ) );
+		$data .= $this->data( 'WP_DEBUG', defined( 'WP_DEBUG' ) ? WP_DEBUG ? 'Enabled' : 'Disabled' : 'Not set' );
+		$data .= $this->data( 'Memory Limit', WP_MEMORY_LIMIT );
+		$data .= $this->data( 'Registered Post Stati', implode( ', ', get_post_stati() ) );
+		$data .= $this->data( 'Revisions', WP_POST_REVISIONS ? WP_POST_REVISIONS > 1 ? 'Limited to ' . WP_POST_REVISIONS : 'Enabled' : 'Disabled' );
+
+		return $data;
+	}
+
+	/**
+	 * Get Uploads/Constants info.
+	 *
+	 * @return string
+	 * @noinspection NestedTernaryOperatorInspection
+	 */
+	private function uploads_info() {
+		$data = $this->header( '-- WordPress Uploads/Constants --' );
+
+		$data .= $this->data( 'WP_CONTENT_DIR', defined( 'WP_CONTENT_DIR' ) ? WP_CONTENT_DIR ?: 'Disabled' : 'Not set' );
+		$data .= $this->data( 'WP_CONTENT_URL', defined( 'WP_CONTENT_URL' ) ? WP_CONTENT_URL ?: 'Disabled' : 'Not set' );
+		$data .= $this->data( 'UPLOADS', defined( 'UPLOADS' ) ? UPLOADS ?: 'Disabled' : 'Not set' );
+
+		$uploads_dir = wp_upload_dir();
+
+		$data .= $this->data( 'wp_uploads_dir() path', $uploads_dir['path'] );
+		$data .= $this->data( 'wp_uploads_dir() url', $uploads_dir['url'] );
+		$data .= $this->data( 'wp_uploads_dir() basedir', $uploads_dir['basedir'] );
+		$data .= $this->data( 'wp_uploads_dir() baseurl', $uploads_dir['baseurl'] );
+
+		return $data;
+	}
+
+	/**
+	 * Get Plugins info.
+	 *
+	 * @return string
+	 */
+	private function plugins_info() {
+		// Get plugins that have an update.
+		$data = $this->mu_plugins();
+
+		$data .= $this->installed_plugins();
+		$data .= $this->multisite_plugins();
+
+		return $data;
+	}
+
+	/**
+	 * Get MU Plugins info.
+	 *
+	 * @return string
+	 */
+	private function mu_plugins() {
+		$data = '';
+
+		// Must-use plugins.
+		// Note: MU plugins can't show updates!
+		$mu_plugins = get_mu_plugins();
+
+		if ( ! empty( $mu_plugins ) && count( $mu_plugins ) > 0 ) {
+			$data = $this->header( '-- Must-Use Plugins --' );
+
+			$key_length = $this->get_max_key_length( $mu_plugins, 'Name' );
+
+			foreach ( $mu_plugins as $plugin_data ) {
+				$data .= $this->data( $plugin_data['Name'], $plugin_data['Version'], $key_length );
+			}
+		}
+
+		return $data;
+	}
+
+	/**
+	 * Get Installed Plugins info.
+	 *
+	 * @return string
+	 */
+	private function installed_plugins() {
+		$updates = get_plugin_updates();
+
+		// WordPress active plugins.
+		$data = $this->header( '-- WordPress Active Plugins --' );
+
+		$plugins        = get_plugins();
+		$active_plugins = get_option( 'active_plugins', [] );
+
+		$key_length = $this->get_max_key_length( $plugins, 'Name' );
+
+		foreach ( $plugins as $plugin_path => $plugin ) {
+			if ( ! in_array( $plugin_path, $active_plugins, true ) ) {
+				continue;
+			}
+
+			$update = array_key_exists( $plugin_path, $updates ) ? ' (needs update - ' . $updates[ $plugin_path ]->update->new_version . ')' : '';
+
+			$data .= $this->data( $plugin['Name'], $plugin['Version'] . $update, $key_length );
+		}
+
+		// WordPress inactive plugins.
+		$data .= $this->header( '-- WordPress Inactive Plugins --' );
+
+		foreach ( $plugins as $plugin_path => $plugin ) {
+			if ( in_array( $plugin_path, $active_plugins, true ) ) {
+				continue;
+			}
+
+			$update = array_key_exists( $plugin_path, $updates ) ? ' (needs update - ' . $updates[ $plugin_path ]->update->new_version . ')' : '';
+
+			$data .= $this->data( $plugin['Name'], $plugin['Version'] . $update, $key_length );
+		}
+
+		return $data;
+	}
+
+	/**
+	 * Get Multisite Plugins info.
+	 *
+	 * @return string
+	 */
+	private function multisite_plugins() {
+		$data = '';
+
+		if ( ! is_multisite() ) {
+			return $data;
+		}
+
+		$updates = get_plugin_updates();
+
+		// WordPress Multisite active plugins.
+		$data = $this->header( '-- Network Active Plugins --' );
+
+		$plugins        = wp_get_active_network_plugins();
+		$active_plugins = get_site_option( 'active_sitewide_plugins', [] );
+
+		foreach ( $plugins as $plugin_path ) {
+			$plugin_base = plugin_basename( $plugin_path );
+
+			if ( ! array_key_exists( $plugin_base, $active_plugins ) ) {
+				continue;
+			}
+
+			$update = array_key_exists( $plugin_path, $updates ) ? ' (needs update - ' . $updates[ $plugin_path ]->update->new_version . ')' : '';
+			$plugin = get_plugin_data( $plugin_path );
+
+			$data .= $plugin['Name'] . ': ' . $plugin['Version'] . $update;
+		}
+
+		return $data;
+	}
+
+	/**
+	 * Get Server info.
+	 *
+	 * @return string
+	 */
+	private function server_info() {
+		global $wpdb;
+
+		// Server configuration (really just versions).
+		$data = $this->header( '-- Webserver Configuration --' );
+
+		$data .= $this->data( 'PHP Version', PHP_VERSION );
+		$data .= $this->data( 'MySQL Version', $wpdb->db_version() );
+		$data .= $this->data( 'Webserver Info', isset( $_SERVER['SERVER_SOFTWARE'] ) ? sanitize_text_field( wp_unslash( $_SERVER['SERVER_SOFTWARE'] ) ) : '' );
+
+		// PHP configs... now we're getting to the important stuff.
+		$data .= $this->header( '-- PHP Configuration --' );
+		$data .= $this->data( 'Memory Limit', ini_get( 'memory_limit' ) );
+		$data .= $this->data( 'Upload Max Size', ini_get( 'upload_max_filesize' ) );
+		$data .= $this->data( 'Post Max Size', ini_get( 'post_max_size' ) );
+		$data .= $this->data( 'Upload Max Filesize', ini_get( 'upload_max_filesize' ) );
+		$data .= $this->data( 'Time Limit', ini_get( 'max_execution_time' ) );
+		$data .= $this->data( 'Max Input Vars', ini_get( 'max_input_vars' ) );
+		$data .= $this->data( 'Display Errors', ( ini_get( 'display_errors' ) ? 'On (' . ini_get( 'display_errors' ) . ')' : 'N/A' ) );
+
+		// PHP extensions and such.
+		$data .= $this->header( '-- PHP Extensions --' );
+		$data .= $this->data( 'cURL', ( function_exists( 'curl_init' ) ? 'Supported' : 'Not Supported' ) );
+		$data .= $this->data( 'fsockopen', ( function_exists( 'fsockopen' ) ? 'Supported' : 'Not Supported' ) );
+		$data .= $this->data( 'SOAP Client', ( class_exists( 'SoapClient', false ) ? 'Installed' : 'Not Installed' ) );
+		$data .= $this->data( 'Suhosin', ( extension_loaded( 'suhosin' ) ? 'Installed' : 'Not Installed' ) );
+
+		// Session stuff.
+		$data .= $this->header( '-- Session Configuration --' );
+		$data .= $this->data( 'Session', isset( $_SESSION ) ? 'Enabled' : 'Disabled' );
+
+		// The rest of this is only relevant if session is enabled.
+		if ( isset( $_SESSION ) ) {
+			$data .= $this->data( 'Session Name', esc_html( ini_get( 'session.name' ) ) );
+			$data .= $this->data( 'Cookie Path', esc_html( ini_get( 'session.cookie_path' ) ) );
+			$data .= $this->data( 'Save Path', esc_html( ini_get( 'session.save_path' ) ) );
+			$data .= $this->data( 'Use Cookies', ( ini_get( 'session.use_cookies' ) ? 'On' : 'Off' ) );
+			$data .= $this->data( 'Use Only Cookies', ( ini_get( 'session.use_only_cookies' ) ? 'On' : 'Off' ) );
+		}
+
+		return $data;
+	}
+
+	/**
+	 * Get header.
+	 *
+	 * @param string $header Header.
+	 *
+	 * @return string
+	 */
+	private function header( $header ) {
+		return "\n" . $header . "\n\n";
+	}
+
+	/**
+	 * Get data string.
+	 *
+	 * @param string $key            Data key.
+	 * @param string $value          Data value.
+	 * @param int    $max_key_length Max key length.
+	 *
+	 * @return string
+	 */
+	private function data( $key, $value, $max_key_length = 0 ) {
+		$length = $max_key_length ? max( $max_key_length, self::DATA_KEY_LENGTH ) : self::DATA_KEY_LENGTH;
+
+		$length += 2;
+
+		return $this->mb_str_pad( $key . ': ', $length ) . $value . "\n";
+	}
+
+	/**
+	 * Get max key length.
+	 *
+	 * @param array  $array Array.
+	 * @param string $key   Key.
+	 *
+	 * @return int
+	 */
+	private function get_max_key_length( $array, $key ) {
+		return array_reduce(
+			$array,
+			static function ( $carry, $item ) use ( $key ) {
+				$length = isset( $item[ $key ] ) ? mb_strlen( $item[ $key ] ) : 0;
+
+				return max( $carry, $length );
+			},
+			0
+		);
+	}
+
+	/**
+	 * Multibyte str_pad.
+	 *
+	 * @param string $string     A string.
+	 * @param int    $length     Desired length.
+	 * @param string $pad_string Padding character.
+	 *
+	 * @return string
+	 * @noinspection PhpSameParameterValueInspection
+	 */
+	private function mb_str_pad( $string, $length, $pad_string = ' ' ) {
+		$pad_string = mb_substr( $pad_string, 0, 1 );
+		$times      = max( 0, $length - mb_strlen( $string ) );
+
+		return $string . str_repeat( $pad_string, $times );
+	}
+
+	/**
+	 * Return whether data is empty.
+	 *
+	 * @param mixed $data Data.
+	 *
+	 * @return string
+	 */
+	private function is_empty( $data ) {
+		return empty( $data ) ? 'Not set' : 'Set';
+	}
+
+	/**
+	 * Return whether option value is 'on' or just non-empty.
+	 *
+	 * @param string $key Setting name.
+	 *
+	 * @return string
+	 */
+	private function is_on( $key ) {
+		return hcaptcha()->settings()->is_on( $key ) ? 'On' : 'Off';
+	}
+}
diff --git a/src/php/Subscriber/Form.php b/src/php/Subscriber/Form.php
index 480bfad2..f42d0332 100644
--- a/src/php/Subscriber/Form.php
+++ b/src/php/Subscriber/Form.php
@@ -52,6 +52,10 @@ public function add_captcha( $content ) {
 		$args = [
 			'action' => self::ACTION,
 			'name'   => self::NAME,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( static::class ),
+				'form_id' => 'form',
+			],
 		];
 
 		return $content . HCaptcha::form( $args );
diff --git a/src/php/SupportCandy/Base.php b/src/php/SupportCandy/Base.php
index 04b9f5ef..a8c363c7 100644
--- a/src/php/SupportCandy/Base.php
+++ b/src/php/SupportCandy/Base.php
@@ -40,6 +40,10 @@ public function add_captcha() {
 		$args = [
 			'action' => static::ACTION,
 			'name'   => static::NAME,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( static::class ),
+				'form_id' => 'form',
+			],
 		];
 
 		HCaptcha::form_display( $args );
diff --git a/src/php/UM/Base.php b/src/php/UM/Base.php
index 94f9d3b9..00330bbb 100644
--- a/src/php/UM/Base.php
+++ b/src/php/UM/Base.php
@@ -51,6 +51,13 @@ abstract class Base extends LoginBase {
 	 */
 	private $hcaptcha_action;
 
+	/**
+	 * Form id.
+	 *
+	 * @var int
+	 */
+	protected $form_id = 0;
+
 	/**
 	 * The hCaptcha nonce.
 	 *
@@ -74,9 +81,23 @@ public function __construct() {
 	 * Init hooks.
 	 */
 	protected function init_hooks() {
+		$mode = static::UM_MODE;
+
+		add_action( "um_main_{$mode}_fields", [ $this, 'set_form_id' ] );
 		add_filter( 'um_get_form_fields', [ $this, 'add_captcha' ], 100 );
 		add_filter( "um_{$this->key}_form_edit_field", [ $this, 'display_captcha' ], 10, 2 );
-		add_action( static::UM_ACTION, [ $this, 'verify' ] );
+		add_action( static::UM_ACTION, [ $this, 'verify' ], 10, 2 );
+	}
+
+	/**
+	 * Set form id.
+	 *
+	 * @param array $args Arguments.
+	 *
+	 * @return void
+	 */
+	public function set_form_id( $args ) {
+		$this->form_id = isset( $args['form_id'] ) ? (int) $args['form_id'] : 0;
 	}
 
 	/**
@@ -85,7 +106,6 @@ protected function init_hooks() {
 	 * @param array $fields Form fields.
 	 *
 	 * @return array
-	 * @noinspection PhpUndefinedFunctionInspection
 	 */
 	public function add_captcha( $fields ) {
 		$um = UM();
@@ -147,19 +167,21 @@ public function add_captcha( $fields ) {
 	 * @param string $mode   Mode.
 	 *
 	 * @return string
-	 * @noinspection PhpUnnecessaryCurlyVarSyntaxInspection
-	 * @noinspection PhpUndefinedFunctionInspection
 	 */
 	public function display_captcha( $output, $mode ) {
 		if ( $this->um_mode !== $mode || '' !== $output ) {
 			return $output;
 		}
 
-		$output = "<div class=\"um-field um-field-{$this->key}\">";
+		$output = "<div class=\"um-field um-field-$this->key\">";
 
 		$args = [
 			'action' => $this->hcaptcha_action,
 			'name'   => $this->hcaptcha_nonce,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( static::class ),
+				'form_id' => $this->form_id ?: $mode,
+			],
 		];
 
 		$output .= HCaptcha::form( $args );
@@ -183,15 +205,18 @@ public function display_captcha( $output, $mode ) {
 	/**
 	 * Verify hCaptcha.
 	 *
-	 * @param array $args Form arguments.
+	 * @param array $submitted_data Submitted data.
+	 * @param array $form_data      Form data.
 	 *
 	 * @return void
-	 * @noinspection PhpUndefinedFunctionInspection
 	 */
-	public function verify( $args ) {
+	public function verify( $submitted_data, $form_data = [] ) {
 		$um = UM();
 
-		if ( ! $um || ! isset( $args['mode'] ) || $this->um_mode !== $args['mode'] ) {
+		if (
+			! $um ||
+			( isset( $form_data['mode'] ) && $this->um_mode !== $form_data['mode'] )
+		) {
 			return;
 		}
 
diff --git a/src/php/UM/Login.php b/src/php/UM/Login.php
index 8335df8d..525ce76b 100644
--- a/src/php/UM/Login.php
+++ b/src/php/UM/Login.php
@@ -65,15 +65,16 @@ public function add_captcha( $fields ) {
 	/**
 	 * Verify hCaptcha.
 	 *
-	 * @param array $args Form arguments.
+	 * @param array $submitted_data Submitted data.
+	 * @param array $form_data      Form data.
 	 *
 	 * @return void
 	 */
-	public function verify( $args ) {
+	public function verify( $submitted_data, $form_data = [] ) {
 		if ( ! $this->is_login_limit_exceeded() ) {
 			return;
 		}
 
-		parent::verify( $args );
+		parent::verify( $submitted_data, $form_data );
 	}
 }
diff --git a/src/php/WC/LostPassword.php b/src/php/WC/LostPassword.php
index 6fef8471..3e51f94d 100644
--- a/src/php/WC/LostPassword.php
+++ b/src/php/WC/LostPassword.php
@@ -7,51 +7,36 @@
 
 namespace HCaptcha\WC;
 
-use HCaptcha\Helpers\HCaptcha;
+use HCaptcha\Abstracts\LostPasswordBase;
 
 /**
  * Class LostPassword
  *
  * This class uses verify hook in WP\LostPassword.
  */
-class LostPassword {
+class LostPassword extends LostPasswordBase {
 	/**
 	 * Nonce action.
 	 */
-	const ACTION = 'hcaptcha_lost_password';
+	const ACTION = 'hcaptcha_wc_lost_password';
 
 	/**
 	 * Nonce name.
 	 */
-	const NONCE = 'hcaptcha_lost_password_nonce';
+	const NONCE = 'hcaptcha_wc_lost_password_nonce';
 
 	/**
-	 * Constructor.
+	 * Add hCaptcha action.
 	 */
-	public function __construct() {
-		$this->init_hooks();
-	}
+	const ADD_CAPTCHA_ACTION = 'woocommerce_lostpassword_form';
 
 	/**
-	 * Init hooks.
+	 * $_POST key to check.
 	 */
-	private function init_hooks() {
-		add_action( 'woocommerce_lostpassword_form', [ $this, 'add_captcha' ] );
-	}
+	const POST_KEY = 'wc_reset_password';
 
 	/**
-	 * Add captcha.
+	 * $_POST value to check.
 	 */
-	public function add_captcha() {
-		$args = [
-			'action' => self::ACTION,
-			'name'   => self::NONCE,
-			'id'     => [
-				'source'  => HCaptcha::get_class_source( __CLASS__ ),
-				'form_id' => 'lost_password',
-			],
-		];
-
-		HCaptcha::form_display( $args );
-	}
+	const POST_VALUE = 'true';
 }
diff --git a/src/php/WCWishlists/CreateList.php b/src/php/WCWishlists/CreateList.php
index dff16157..5c92ac7e 100644
--- a/src/php/WCWishlists/CreateList.php
+++ b/src/php/WCWishlists/CreateList.php
@@ -60,6 +60,10 @@ public function after_wrapper() {
 		$args = [
 			'action' => self::ACTION,
 			'name'   => self::NONCE,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( static::class ),
+				'form_id' => 'form',
+			],
 		];
 
 		// Find last $search string and insert hcaptcha before it.
diff --git a/src/php/WP/Login.php b/src/php/WP/Login.php
index be3982e9..6e8de6e5 100644
--- a/src/php/WP/Login.php
+++ b/src/php/WP/Login.php
@@ -22,13 +22,14 @@
  * Class Login
  */
 class Login extends LoginBase {
+
 	/**
 	 * Nonce action.
 	 */
 	const ACTION = 'hcaptcha_login';
 
 	/**
-	 * Nonce action.
+	 * Nonce name.
 	 */
 	const NONCE = 'hcaptcha_login_nonce';
 
diff --git a/src/php/WP/LostPassword.php b/src/php/WP/LostPassword.php
index ceee776f..d6f0c36e 100644
--- a/src/php/WP/LostPassword.php
+++ b/src/php/WP/LostPassword.php
@@ -7,81 +7,35 @@
 
 namespace HCaptcha\WP;
 
-use HCaptcha\Helpers\HCaptcha;
-use HCaptcha\WC\LostPassword as WCLostPassword;
-use WP_Error;
+use HCaptcha\Abstracts\LostPasswordBase;
 
 /**
  * Class LostPassword
  */
-class LostPassword {
+class LostPassword extends LostPasswordBase {
+
 	/**
 	 * Nonce action.
 	 */
-	const ACTION = 'hcaptcha_lost_password';
+	const ACTION = 'hcaptcha_wp_lost_password';
 
 	/**
 	 * Nonce name.
 	 */
-	const NONCE = 'hcaptcha_lost_password_nonce';
-
-	/**
-	 * Constructor.
-	 */
-	public function __construct() {
-		$this->init_hooks();
-	}
+	const NONCE = 'hcaptcha_wp_lost_password_nonce';
 
 	/**
-	 * Init hooks.
+	 * Add hCaptcha action.
 	 */
-	private function init_hooks() {
-		add_action( 'lostpassword_form', [ $this, 'add_captcha' ] );
-		add_action( 'lostpassword_post', [ $this, 'verify' ] );
-	}
+	const ADD_CAPTCHA_ACTION = 'lostpassword_form';
 
 	/**
-	 * Add captcha.
+	 * $_POST key to check.
 	 */
-	public function add_captcha() {
-		$args = [
-			'action' => self::ACTION,
-			'name'   => self::NONCE,
-			'id'     => [
-				'source'  => HCaptcha::get_class_source( __CLASS__ ),
-				'form_id' => 'lost_password',
-			],
-		];
-
-		HCaptcha::form_display( $args );
-	}
+	const POST_KEY = 'wp-submit';
 
 	/**
-	 * Verify lost password form.
-	 *
-	 * @param WP_Error $error Error.
-	 *
-	 * @return WP_Error
+	 * $_POST value to check.
 	 */
-	public function verify( $error ) {
-		if (
-			// Nonce is checked by WC.
-			// phpcs:ignore WordPress.Security.NonceVerification.Missing
-			isset( $_POST['wc_reset_password'] ) &&
-			! hcaptcha()->settings()->is( 'woocommerce_status', 'lost_pass' )
-		) {
-			return $error;
-		}
-
-		$error_message = hcaptcha_get_verify_message_html(
-			self::NONCE,
-			self::ACTION
-		);
-
-		if ( null !== $error_message ) {
-			$error->add( 'invalid_captcha', $error_message );
-		}
-
-		return $error;
-	}
+	const POST_VALUE = null;
 }
diff --git a/src/php/WPDiscuz/Base.php b/src/php/WPDiscuz/Base.php
new file mode 100644
index 00000000..46c5828b
--- /dev/null
+++ b/src/php/WPDiscuz/Base.php
@@ -0,0 +1,51 @@
+<?php
+/**
+ * Base class file.
+ *
+ * @package hcaptcha-wp
+ */
+
+namespace HCaptcha\WPDiscuz;
+
+use HCaptcha\Helpers\HCaptcha;
+use WP_User;
+
+/**
+ * Class Base.
+ */
+abstract class Base {
+
+	/**
+	 * Class constructor.
+	 */
+	public function __construct() {
+		$this->init_hooks();
+	}
+
+	/**
+	 * Add hooks.
+	 *
+	 * @return void
+	 */
+	protected function init_hooks() {
+		add_filter(
+			'wpdiscuz_recaptcha_site_key',
+			static function () {
+				// Block output of reCaptcha by wpDiscuz.
+				return '';
+			}
+		);
+
+		add_action( 'wp_enqueue_scripts', [ $this, 'enqueue_scripts' ], 11 );
+	}
+
+	/**
+	 * Dequeue recaptcha script.
+	 *
+	 * @return void
+	 */
+	public function enqueue_scripts() {
+		wp_dequeue_script( 'wpdiscuz-google-recaptcha' );
+		wp_deregister_script( 'wpdiscuz-google-recaptcha' );
+	}
+}
diff --git a/src/php/WPDiscuz/Form.php b/src/php/WPDiscuz/Comment.php
similarity index 65%
rename from src/php/WPDiscuz/Form.php
rename to src/php/WPDiscuz/Comment.php
index 7434ae4d..3a9f49ce 100644
--- a/src/php/WPDiscuz/Form.php
+++ b/src/php/WPDiscuz/Comment.php
@@ -13,14 +13,7 @@
 /**
  * Class Form.
  */
-class Form {
-
-	/**
-	 * Form constructor.
-	 */
-	public function __construct() {
-		$this->init_hooks();
-	}
+class Comment extends Base {
 
 	/**
 	 * Add hooks.
@@ -28,39 +21,44 @@ public function __construct() {
 	 * @return void
 	 */
 	public function init_hooks() {
+		parent::init_hooks();
+
 		add_action( 'wpdiscuz_form_render', [ $this, 'add_hcaptcha' ], 10, 3 );
 		add_filter( 'preprocess_comment', [ $this, 'verify' ], 9 );
-		add_action( 'wp_enqueue_scripts', [ $this, 'enqueue_scripts' ], 11 );
 	}
 
 	/**
-	 * Replaces reCaptcha field by hCaptcha in wpDiscuz form.
+	 * Add hCaptcha to wpDiscuz form.
 	 *
 	 * @param string        $output         Output.
 	 * @param int|string    $comments_count Comments count.
 	 * @param WP_User|false $current_user   Current user.
 	 *
 	 * @return string
-	 * @noinspection PhpUnusedParameterInspection
 	 */
 	public function add_hcaptcha( $output, $comments_count, $current_user ) {
-		if ( ! preg_match( "/id='wpdiscuz-recaptcha-(.+?)'/", $output, $m ) ) {
-			return $output;
-		}
+		global $post;
 
-		$unique_id = $m[1];
+		$args = [
+			'id' => [
+				'source'  => HCaptcha::get_class_source( static::class ),
+				'form_id' => $post ? $post->ID : 0,
+			],
+		];
 
 		ob_start();
 		?>
 		<div class="wpd-field-hcaptcha wpdiscuz-item">
-			<div class="wpdiscuz-hcaptcha" id='wpdiscuz-hcaptcha-<?php echo esc_attr( $unique_id ); ?>'></div>
-			<?php HCaptcha::form_display(); ?>
+			<div class="wpdiscuz-hcaptcha" id='wpdiscuz-hcaptcha'></div>
+			<?php HCaptcha::form_display( $args ); ?>
 			<div class="clearfix"></div>
 		</div>
 		<?php
 		$form = ob_get_clean();
 
-		return preg_replace( '/<div class="wpd-field-captcha wpdiscuz-item"(.+?<\/div>){3}/s', $form, $output );
+		$search = '<div class="wc-field-submit">';
+
+		return str_replace( $search, $form . $search, $output );
 	}
 
 	/**
@@ -69,7 +67,6 @@ public function add_hcaptcha( $output, $comments_count, $current_user ) {
 	 * @param array $comment_data Comment data.
 	 *
 	 * @return array
-	 * @noinspection PhpUnusedParameterInspection
 	 * @noinspection PhpUndefinedFunctionInspection
 	 * @noinspection ForgottenDebugOutputInspection
 	 */
@@ -96,14 +93,4 @@ public function verify( $comment_data ) {
 
 		wp_die( esc_html( $result ) );
 	}
-
-	/**
-	 * Dequeue recaptcha script.
-	 *
-	 * @return void
-	 */
-	public function enqueue_scripts() {
-		wp_dequeue_script( 'wpdiscuz-google-recaptcha' );
-		wp_deregister_script( 'wpdiscuz-google-recaptcha' );
-	}
 }
diff --git a/src/php/WPDiscuz/Subscribe.php b/src/php/WPDiscuz/Subscribe.php
new file mode 100644
index 00000000..2af19570
--- /dev/null
+++ b/src/php/WPDiscuz/Subscribe.php
@@ -0,0 +1,73 @@
+<?php
+/**
+ * Subscribe class file.
+ *
+ * @package hcaptcha-wp
+ */
+
+namespace HCaptcha\WPDiscuz;
+
+use HCaptcha\Helpers\HCaptcha;
+use WP_User;
+
+/**
+ * Class Subscribe.
+ */
+class Subscribe extends Base {
+
+	/**
+	 * Add hooks.
+	 *
+	 * @return void
+	 */
+	protected function init_hooks() {
+		parent::init_hooks();
+
+		add_action( 'wpdiscuz_after_subscription_form', [ $this, 'add_hcaptcha' ], 10, 3 );
+		add_action( 'wp_ajax_wpdAddSubscription', [ $this, 'verify' ], 9 );
+		add_action( 'wp_ajax_nopriv_wpdAddSubscription', [ $this, 'verify' ], 9 );
+	}
+
+	/**
+	 * Replaces reCaptcha field by hCaptcha in wpDiscuz form.
+	 *
+	 * @return void
+	 */
+	public function add_hcaptcha() {
+		global $post;
+
+		$args = [
+			'id' => [
+				'source'  => HCaptcha::get_class_source( static::class ),
+				'form_id' => $post ? $post->ID : 0,
+			],
+		];
+
+		HCaptcha::form_display( $args );
+	}
+
+	/**
+	 * Verify request.
+	 *
+	 * @return void
+	 */
+	public function verify() {
+		// Nonce is checked by wpDiscuz.
+
+		// phpcs:disable WordPress.Security.NonceVerification.Missing
+		$hcaptcha_response = isset( $_POST['h-captcha-response'] ) ?
+			filter_var( wp_unslash( $_POST['h-captcha-response'] ), FILTER_SANITIZE_FULL_SPECIAL_CHARS ) :
+			'';
+
+		$result = hcaptcha_request_verify( $hcaptcha_response );
+
+		unset( $_POST['h-captcha-response'], $_POST['g-recaptcha-response'] );
+		// phpcs:enable WordPress.Security.NonceVerification.Missing
+
+		if ( null === $result ) {
+			return;
+		}
+
+		wp_send_json_error( $result );
+	}
+}
diff --git a/src/php/WPForms/Form.php b/src/php/WPForms/Form.php
index 0f97e818..a72557e1 100644
--- a/src/php/WPForms/Form.php
+++ b/src/php/WPForms/Form.php
@@ -54,6 +54,10 @@ public function add_captcha( $form_data ) {
 		$args = [
 			'action' => self::ACTION,
 			'name'   => self::NAME,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( static::class ),
+				'form_id' => (int) $form_data['id'],
+			],
 		];
 
 		HCaptcha::form_display( $args );
diff --git a/src/php/WPForo/Base.php b/src/php/WPForo/Base.php
index cbc17cb0..e3bef611 100644
--- a/src/php/WPForo/Base.php
+++ b/src/php/WPForo/Base.php
@@ -34,11 +34,27 @@ private function init_hooks() {
 
 	/**
 	 * Add captcha to the new topic form.
+	 *
+	 * @param array|int $topic Topic info.
 	 */
-	public function add_captcha() {
+	public function add_captcha( $topic ) {
+		$form_id = 0;
+
+		if ( current_action() === Reply::ADD_CAPTCHA_HOOK ) {
+			$form_id = (int) $topic['topicid'];
+		}
+
+		if ( current_action() === NewTopic::ADD_CAPTCHA_HOOK ) {
+			$form_id = 'new_topic';
+		}
+
 		$args = [
 			'action' => static::ACTION,
 			'name'   => static::NAME,
+			'id'     => [
+				'source'  => HCaptcha::get_class_source( static::class ),
+				'form_id' => $form_id,
+			],
 		];
 
 		HCaptcha::form_display( $args );
diff --git a/src/php/includes/request.php b/src/php/includes/request.php
index 7d4fa905..fa5e356c 100644
--- a/src/php/includes/request.php
+++ b/src/php/includes/request.php
@@ -85,13 +85,13 @@ function hcap_get_error_messages() {
 /**
  * Get hCaptcha error message.
  *
- * @param array $error_codes Error codes.
+ * @param string|string[] $error_codes Error codes.
  *
  * @return string
  */
 function hcap_get_error_message( $error_codes ) {
-	$errors = hcap_get_error_messages();
-
+	$error_codes = (array) $error_codes;
+	$errors      = hcap_get_error_messages();
 	$message_arr = [];
 
 	foreach ( $error_codes as $error_code ) {