diff --git a/docs/index.html b/docs/index.html
index 6f9381d19..436ca1410 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -1397,4 +1397,13 @@
   
     </div>
   </div>
+  <!-- Google tag (gtag.js) -->
+  <script async src="https://www.googletagmanager.com/gtag/js?id=G-0KQC1F1K4H"></script>
+  <script>
+    window.dataLayer = window.dataLayer || [];
+    function gtag() { dataLayer.push(arguments); }
+    gtag('js', new Date());
+
+    gtag('config', 'G-0KQC1F1K4H');
+  </script>
 </body>
diff --git a/template.html b/template.html
index 39052d986..f9b28e611 100644
--- a/template.html
+++ b/template.html
@@ -27,4 +27,13 @@
       {{calendars}}
     </div>
   </div>
+  <!-- Google tag (gtag.js) -->
+  <script async src="https://www.googletagmanager.com/gtag/js?id=G-0KQC1F1K4H"></script>
+  <script>
+    window.dataLayer = window.dataLayer || [];
+    function gtag() { dataLayer.push(arguments); }
+    gtag('js', new Date());
+
+    gtag('config', 'G-0KQC1F1K4H');
+  </script>
 </body>