diff --git a/index.html b/index.html
index 7957a93..6d338c6 100644
--- a/index.html
+++ b/index.html
@@ -321,6 +321,16 @@
       }
     }
   </style>
+
+  <!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-4G8P6QXLEH"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-4G8P6QXLEH');
+</script>
 </head>
 <body>
 
