diff --git a/src/simpleguardhome/templates/index.html b/src/simpleguardhome/templates/index.html
index 87e125f..4286fd3 100644
--- a/src/simpleguardhome/templates/index.html
+++ b/src/simpleguardhome/templates/index.html
@@ -4,11 +4,12 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>SimpleGuardHome</title>
-    <script src="https://cdn.tailwindcss.com"></script>
+    <script src="https://unpkg.com/@tailwindcss/browser@4" integrity="sha384-fsXZ0Oru5QjGkveFx8DdmBAyKdwnJ7TnbRzDN5LROCKt8PAN8h7y7oqCwtk9cN68" crossorigin="anonymous"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/dompurify/2.3.4/purify.min.js" integrity="sha384-KGmzmwrs7oAU2sG5qfETslFsscVcCaxQrX2d7PW7I9bTrsuTD/eSMFr9jaMS9i+b" crossorigin="anonymous"></script>
     <script>
         async function checkDomain(event) {
             event.preventDefault();
-            const domain = document.getElementById('domain').value;
+            const domain = DOMPurify.sanitize(document.getElementById('domain').value);
             const resultDiv = document.getElementById('result');
             const unblockDiv = document.getElementById('unblock-action');
             const submitBtn = document.getElementById('submit-btn');
@@ -162,4 +163,4 @@
         </div>
     </div>
 </body>
-</html>
\ No newline at end of file
+</html>