diff --git a/package.json b/package.json
index a583d9c..c9edefa 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jandapress",
-  "version": "2.1.6-alpha",
+  "version": "2.1.7-alpha",
   "description": "RESTful and experimental API for the Doujinshi, Pressing the whole nhentai, pururin, hentaifox, and more.. where the official one is lack.",
   "main": "build/src/index.js",
   "scripts": {
diff --git a/src/utils/modifier.ts b/src/utils/modifier.ts
index 3886b55..3ec2b5f 100644
--- a/src/utils/modifier.ts
+++ b/src/utils/modifier.ts
@@ -171,7 +171,7 @@ export function maybeError(success: boolean, message: string) {
  */
 export function nhentaiStrategy() {
   let strategy: string;
-  if (process.env.NHENTAI_IP_ORIGIN === "true" || process.env.NHENTAI_IP_ORIGIN === undefined) strategy = c.NHENTAI_IP_3;
+  if (process.env.NHENTAI_IP_ORIGIN === "true" || process.env.NHENTAI_IP_ORIGIN === undefined) strategy = c.NHENTAI_IP_4;
   else strategy = c.NHENTAI;
   return strategy;
 }
diff --git a/src/utils/options.ts b/src/utils/options.ts
index 44814e0..6645009 100644
--- a/src/utils/options.ts
+++ b/src/utils/options.ts
@@ -8,6 +8,7 @@ export default {
   NHENTAI_IP: "http://35.186.156.165",
   NHENTAI_IP_2: "http://173.82.30.99:3002",
   NHENTAI_IP_3: "http://138.2.77.198:3002",
+  NHENTAI_IP_4: "http://129.150.63.211:3002",
   ASMHENTAI: "https://asmhentai.com",
   THREEHENTAI: "http://3hentai.net"
 };
\ No newline at end of file
diff --git a/test/test.ts b/test/test.ts
index 1733e9e..0d4be1a 100644
--- a/test/test.ts
+++ b/test/test.ts
@@ -1,15 +1,32 @@
 import c from "../src/utils/options";
 import p from "phin";
+import { name, version } from "../package.json";
 
-for (const url of 
-  [c.HENTAIFOX, c.PURURIN, c.HENTAI2READ, c.SIMPLY_HENTAI, 
-    c.SIMPLY_HENTAI_PROXIFIED, c.NHENTAI, c.NHENTAI_IP_3, c.ASMHENTAI]) {
-  p({ url }).then(res => {
-    if (res.statusCode !== 200) {
-      console.log(`${url} is not available, status code: ${res.statusCode}`);
+function getKeyByValue(data: any, value: string) {
+  return Object.keys(data).find(key => data[key] === value);
+}
+
+for (const url of
+  [
+    c.NHENTAI_IP_4,
+    c.HENTAIFOX,
+    c.PURURIN,
+    c.ASMHENTAI,
+    c.SIMPLY_HENTAI_PROXIFIED,
+    c.HENTAI2READ,
+    c.THREEHENTAI
+  ]) {
+  p({ 
+    url: url, 
+    headers: {
+      "User-Agent": `${name}/${version} Node.js/16.9.1`,
+    }
+  }).then(res => {
+    if (res.statusCode !== 200 && res.statusCode !== 308 && res.statusCode !== 301) {
+      throw new Error(`${url} of ${getKeyByValue(c, url)} is not available, status: ${res.statusCode}, couldn't be scrape`);
     }
     else {
-      console.log(`${url} is available, can be scraped`);
+      console.log(`${url} is available status: ${res.statusCode}, could be scrape`);
     }
   });
 }
\ No newline at end of file