diff --git a/src/Appwrite/Platform/Modules/Proxy/Http/Rules/API/Create.php b/src/Appwrite/Platform/Modules/Proxy/Http/Rules/API/Create.php
index 0ab50892be..9d7aca5b43 100644
--- a/src/Appwrite/Platform/Modules/Proxy/Http/Rules/API/Create.php
+++ b/src/Appwrite/Platform/Modules/Proxy/Http/Rules/API/Create.php
@@ -106,9 +106,9 @@ class Create extends Action
             throw new Exception(Exception::GENERAL_ARGUMENT_INVALID, 'This domain name is not allowed. Please use a different domain.');
         }
 
-        if (\str_ends_with($domain, '.appwrite.network')) {
-            $subdomain = \str_replace('.appwrite.network', '', $domain);
-            if (\str_contains($subdomain, '.')) {
+        if (\str_ends_with(\strtolower($domain), '.appwrite.network')) {
+            $subdomain = \str_replace('.appwrite.network', '', \strtolower($domain));
+            if (empty($subdomain) || \str_contains($subdomain, '.')) {
                 throw new Exception(Exception::GENERAL_ARGUMENT_INVALID, 'Sub-subdomains are not allowed for appwrite.network. Only one level of subdomain is permitted.');
             }
         }