diff --git a/_includes/_head.html b/_includes/_head.html
index 13134f0..b052e73 100644
--- a/_includes/_head.html
+++ b/_includes/_head.html
@@ -83,3 +83,12 @@
      });
 </script>
 {% endif %}
+
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-3B7315W4E8"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+  gtag('config', 'G-3B7315W4E8');
+</script>