diff --git a/_layouts/default.html b/_layouts/default.html
index c853229..f88a195 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -48,5 +48,14 @@
       });
     </script>
     <style>video { max-width: 100% !important; }</style>
+    <!-- Google tag (gtag.js) -->
+    <script async src="https://www.googletagmanager.com/gtag/js?id=G-MSNHFWTE77"></script>
+    <script>
+      window.dataLayer = window.dataLayer || [];
+      function gtag(){dataLayer.push(arguments);}
+      gtag('js', new Date());
+
+      gtag('config', 'G-MSNHFWTE77');
+    </script>
   </body>
 </html>