diff --git a/index.html b/index.html
index cc9fa0d..c8a05e3 100644
--- a/index.html
+++ b/index.html
@@ -40,6 +40,17 @@ <h1 id="level-title">Press the button to Start</h1>
 
   <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
   <script src="index.js" charset="utf-8"></script>
+  
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-K17HF78FN3"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-K17HF78FN3');
+</script>
+
 
 </body>