diff --git a/index.html b/index.html
index 1d151a2..f7f71de 100644
--- a/index.html
+++ b/index.html
@@ -10,6 +10,15 @@
     <link rel="stylesheet" href="css/popup.css">
     <link rel="stylesheet" href="css/searchbar.css">
     <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
+    <!-- Google tag (gtag.js) -->
+    <script async src="https://www.googletagmanager.com/gtag/js?id=G-C44R8LD9MC"></script>
+    <script>
+      window.dataLayer = window.dataLayer || [];
+      function gtag(){dataLayer.push(arguments);}
+      gtag('js', new Date());
+
+      gtag('config', 'G-C44R8LD9MC');
+    </script>
 </head>
 
 <body>
