diff --git a/index.html b/index.html
index 11cd63fd..516381bb 100644
--- a/index.html
+++ b/index.html
@@ -10,7 +10,13 @@
   <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/docsify-themeable@0/dist/css/theme-simple.css"></head>
 <body>
   <div id="app"></div>
-  <script>
+  <script type="text/javascript">
+    (function(c,l,a,r,i,t,y){
+        c[a]=c[a]||function(){(c[a].q=c[a].q||[]).push(arguments)};
+        t=l.createElement(r);t.async=1;t.src="https://www.clarity.ms/tag/"+i;
+        y=l.getElementsByTagName(r)[0];y.parentNode.insertBefore(t,y);
+    })(window, document, "clarity", "script", "ekxr1n6fgy");
+
     window.$docsify = {
       name: 'Web Development for Beginners: A Curriculum',
       repo: 'https://github.com/microsoft/Web-Dev-For-Beginners',
