diff --git a/website/source/layouts/_header.erb b/website/source/layouts/_header.erb
index 9641fbccc7..8f5417a95f 100644
--- a/website/source/layouts/_header.erb
+++ b/website/source/layouts/_header.erb
@@ -21,10 +21,23 @@
     <script type="text/javascript" src="//use.typekit.net/kgv0shi.js"></script>
     <script type="text/javascript">try{Typekit.load();}catch(e){}</script>
 
+    <!-- Google Tag Manager -->
+    <script>(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-NR2SD7C');</script>
+    <!-- End Google Tag Manager -->
+
     <%= yield_content :head %>
   </head>
 
   <body class="page-<%= current_page.data.page_title ? "#{current_page.data.page_title} layout-#{current_page.data.layout} page-sub" : "home layout-#{current_page.data.layout}" %> -displaying-bnr">
+    <!-- Google Tag Manager (noscript) -->
+    <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-NR2SD7C"
+    height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
+    <!-- End Google Tag Manager (noscript) -->
+
     <div id="header" class="navigation <%= current_page.data.page_title == "home" ? "" : "navbar-static-top" %>">
       <%= partial "layouts/announcement-bnr" %>
       <div class="container">
