diff --git a/libs/ui-lib/lib/common/components/ui/formik/validationSchemas.test.ts b/libs/ui-lib/lib/common/components/ui/formik/validationSchemas.test.ts
index 61afc9e1d0..cab72cbb8d 100644
--- a/libs/ui-lib/lib/common/components/ui/formik/validationSchemas.test.ts
+++ b/libs/ui-lib/lib/common/components/ui/formik/validationSchemas.test.ts
@@ -1,5 +1,6 @@
 import { test, describe, expect } from 'vitest';
 import {
+  baseDomainValidationSchema,
   dnsNameValidationSchema,
   hostPrefixValidationSchema,
   ipBlockValidationSchema,
@@ -317,4 +318,51 @@ describe('validationSchemas', () => {
 
     expect(counter).toBe(invalid.length);
   });
+
+  test('baseDomainNameValidationSchema', async () => {
+    const valid = [
+      'a.com',
+      'co',
+      '1c',
+      '1-c',
+      '1--c',
+      'aaa',
+      'abc.def',
+      'a-aa.com',
+      'a--aa.com',
+      'aa.com.com.com.com',
+      'red.cat--rahul.com',
+    ];
+    const invalid = [
+      'a',
+      '-',
+      'a-',
+      '-aaa.com.',
+      'aaa-.com',
+      'a.c',
+      'aaa.c',
+      'DNSnamescancontainonlyalphabeticalcharactersa-znumericcharacters0-9theminussign-andtheperiod',
+      'DNSnamescancontainonlyalphabeticalcharactersa-znumericcharacters0-9theminussign-andtheperiod.com',
+    ];
+
+    await Promise.all(
+      valid.map((value) =>
+        baseDomainValidationSchema
+          .validate(value)
+          .catch(() => expect(value).toBe(`was rejected but is valid`)),
+      ),
+    );
+
+    let counter = 0;
+    await Promise.all(
+      invalid.map((value) =>
+        baseDomainValidationSchema.validate(value).then(
+          () => expect(value).toBe('should be rejected since it is invalid'),
+          () => counter++,
+        ),
+      ),
+    );
+
+    expect(counter).toBe(invalid.length);
+  });
 });
diff --git a/libs/ui-lib/lib/common/components/ui/formik/validationSchemas.ts b/libs/ui-lib/lib/common/components/ui/formik/validationSchemas.ts
index 8825410c68..c22191269d 100644
--- a/libs/ui-lib/lib/common/components/ui/formik/validationSchemas.ts
+++ b/libs/ui-lib/lib/common/components/ui/formik/validationSchemas.ts
@@ -38,8 +38,8 @@ const CLUSTER_NAME_VALID_CHARS_REGEX = /^[a-z0-9-]*$/;
 const SSH_PUBLIC_KEY_REGEX =
   /^(ssh-rsa|ssh-ed25519|ecdsa-[-a-z0-9]*) AAAA[0-9A-Za-z+/]+[=]{0,3}( .+)?$/;
 const DNS_NAME_REGEX = /^([a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,}$/;
-const BASE_DOMAIN_REGEX = /^([a-z0-9]+(-[a-z0-9]+)*)$/;
-const DNS_NAME_REGEX_OCM = /^([a-z0-9]+(-[a-z0-9]+)*[.])+[a-z]{2,}$/;
+const BASE_DOMAIN_REGEX = /^[a-z\d][\-]*[a-z\d]+$/;
+const DNS_NAME_REGEX_OCM = /^([a-z\d]([\-]*[a-z\d]+)*\.)+[a-z\d]+[\-]*[a-z\d]+$/;
 
 const PROXY_DNS_REGEX =
   /(^\.?([a-zA-Z0-9_]{1}[a-zA-Z0-9_-]{0,62}){1}(\.[a-zA-Z0-9_]{1}[a-zA-Z0-9_-]{0,62})*$)/;