diff --git a/_includes/javascript.html b/_includes/javascript.html
index 524932b6..4501690f 100644
--- a/_includes/javascript.html
+++ b/_includes/javascript.html
@@ -4,6 +4,8 @@
 <script src="{{ page.root }}/assets/js/jquery.min.js"></script>
 <script src="{{ page.root }}/assets/js/bootstrap.min.js"></script>
 <script src="{{ page.root }}/assets/js/lesson.js"></script>
+<!-- Global site tag (gtag.js) - Google Analytics -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=UA-169902961-1"></script>
 <script>
   window.dataLayer = window.dataLayer || [];
   function gtag(){dataLayer.push(arguments);}
@@ -12,3 +14,4 @@
   gtag('config', 'UA-169902961-1');
 </script>
 
+