ga

src/index.html

@@ -236,5 +236,7 @@
       tutorial2d.src = tutorial2d.dataset.src;
     </script>
     <a id="vrButton" href="#" title="Enter VR / Fullscreen"></a>
+
+    {% include './templates/ga.html' %}
   </body>
 </html>

src/templates/ga.html

@@ -0,0 +1,7 @@
+<script async src="https://www.googletagmanager.com/gtag/js?id=UA-111391431-13"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+    gtag('js', new Date());
+  gtag('config', 'UA-111391431-13');
+</script>