diff --git a/_includes/head-custom-google-analytics.html b/_includes/head-custom-google-analytics.html
new file mode 100644
index 0000000000..8a3ae5c9ca
--- /dev/null
+++ b/_includes/head-custom-google-analytics.html
@@ -0,0 +1,10 @@
+{% if site.google_analytics %}
+  <script>
+    (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+    (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+            m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+        })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+    ga('create', '{{ site.google_analytics }}', 'auto');
+    ga('send', 'pageview');
+  </script>
+{% endif %}
diff --git a/_includes/head-custom.html b/_includes/head-custom.html
new file mode 100644
index 0000000000..f7187e79e5
--- /dev/null
+++ b/_includes/head-custom.html
@@ -0,0 +1,9 @@
+<!-- start custom head snippets, customize with your own _includes/head-custom.html file -->
+
+<!-- Setup Google Analytics -->
+{% include head-custom-google-analytics.html %}
+
+<!-- You can set your favicon here -->
+<!-- link rel="shortcut icon" type="image/x-icon" href="{{ '/favicon.ico' | relative_url }}" -->
+
+<!-- end custom head snippets -->
diff --git a/_layouts/default.html b/_layouts/default.html
index f6aa349448..ba7224fee0 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -1,16 +1,6 @@
 <!DOCTYPE html>
 <html lang="{{ site.lang | default: "en-US" }}">
   <head>
-
-    {% if site.google_analytics %}
-      <script async src="https://www.googletagmanager.com/gtag/js?id={{ site.google_analytics }}"></script>
-      <script>
-        window.dataLayer = window.dataLayer || [];
-        function gtag(){dataLayer.push(arguments);}
-        gtag('js', new Date());
-        gtag('config', '{{ site.google_analytics }}');
-      </script>
-    {% endif %}
     <meta charset="UTF-8">
 
 {% seo %}
@@ -20,6 +10,7 @@
     <meta name="theme-color" content="#157878">
     <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
     <link rel="stylesheet" href="{{ '/assets/css/style.css?v=' | append: site.github.build_revision | relative_url }}">
+    {% include head-custom.html %}
   </head>
   <body>
     <a id="skip-to-content" href="#content">Skip to the content.</a>
