diff --git a/website/index.html b/website/index.html
index 38030d8ff..8a85aac30 100644
--- a/website/index.html
+++ b/website/index.html
@@ -5,19 +5,20 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>iii | Interoperable Invocation Interface</title>
 
-    <!-- Google tag (gtag.js) -->
-    <script
-      async
-      src="https://www.googletagmanager.com/gtag/js?id=G-E4G8GW1J2Q"
-    ></script>
+    <!-- Google Tag Manager -->
     <script>
-      window.dataLayer = window.dataLayer || [];
-      function gtag() {
-        dataLayer.push(arguments);
-      }
-      gtag('js', new Date());
-      gtag('config', 'G-E4G8GW1J2Q');
+      (function (w, d, s, l, i) {
+        w[l] = w[l] || [];
+        w[l].push({ 'gtm.start': new Date().getTime(), event: 'gtm.js' });
+        var f = d.getElementsByTagName(s)[0],
+          j = d.createElement(s),
+          dl = l != 'dataLayer' ? '&l=' + l : '';
+        j.async = true;
+        j.src = 'https://www.googletagmanager.com/gtm.js?id=' + i + dl;
+        f.parentNode.insertBefore(j, f);
+      })(window, document, 'script', 'dataLayer', 'GTM-N8DCTFB8');
     </script>
+    <!-- End Google Tag Manager -->
     <!-- CommonRoom: loaded dynamically after cookie consent (see useCookieConsent.ts) -->
 
     <!-- Favicon -->
@@ -140,6 +141,16 @@
     </script>
   </head>
   <body>
+    <!-- Google Tag Manager (noscript) -->
+    <noscript
+      ><iframe
+        src="https://www.googletagmanager.com/ns.html?id=GTM-N8DCTFB8"
+        height="0"
+        width="0"
+        style="display: none; visibility: hidden"
+      ></iframe
+    ></noscript>
+    <!-- End Google Tag Manager (noscript) -->
     <div id="root"></div>
     <script type="module" src="/index.tsx"></script>
   </body>
