diff --git a/01-JavaScript-Drum-Kit/index.html b/01-JavaScript-Drum-Kit/index.html
index db36c61..b19b34b 100644
--- a/01-JavaScript-Drum-Kit/index.html
+++ b/01-JavaScript-Drum-Kit/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 <body>
 
diff --git a/02-JS-and-CSS-Clock/index.html b/02-JS-and-CSS-Clock/index.html
index a3182d9..dfb3622 100644
--- a/02-JS-and-CSS-Clock/index.html
+++ b/02-JS-and-CSS-Clock/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/03-CSS-Variables/index.html b/03-CSS-Variables/index.html
index ef3f462..1e4a2a7 100644
--- a/03-CSS-Variables/index.html
+++ b/03-CSS-Variables/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/04-Array-Cardio-Day-1/index.html b/04-Array-Cardio-Day-1/index.html
index 36e05fa..430d5a5 100644
--- a/04-Array-Cardio-Day-1/index.html
+++ b/04-Array-Cardio-Day-1/index.html
@@ -8,7 +8,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 <body>
   <p><em>Psst: have a look at the JavaScript Console</em> 💁</p>
diff --git a/05-Flex-Panel-Gallery/index.html b/05-Flex-Panel-Gallery/index.html
index ec804d4..e79d2f3 100644
--- a/05-Flex-Panel-Gallery/index.html
+++ b/05-Flex-Panel-Gallery/index.html
@@ -10,7 +10,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/06-Type-Ahead/index.html b/06-Type-Ahead/index.html
index 1469272..a55f1b4 100644
--- a/06-Type-Ahead/index.html
+++ b/06-Type-Ahead/index.html
@@ -10,7 +10,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/07-Array-Cardio-Day-2/index.html b/07-Array-Cardio-Day-2/index.html
index 9c8bef1..e128c27 100644
--- a/07-Array-Cardio-Day-2/index.html
+++ b/07-Array-Cardio-Day-2/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/08-Fun-with-HTML5-Canvas/index.html b/08-Fun-with-HTML5-Canvas/index.html
index 00580b6..56988cb 100644
--- a/08-Fun-with-HTML5-Canvas/index.html
+++ b/08-Fun-with-HTML5-Canvas/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body> 
diff --git a/09-Dev-Tools-Domination/index.html b/09-Dev-Tools-Domination/index.html
index 177d1a2..080d713 100644
--- a/09-Dev-Tools-Domination/index.html
+++ b/09-Dev-Tools-Domination/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/10-Hold-Shift-and-Check-Checkboxes/index.html b/10-Hold-Shift-and-Check-Checkboxes/index.html
index 45aed08..40e2659 100644
--- a/10-Hold-Shift-and-Check-Checkboxes/index.html
+++ b/10-Hold-Shift-and-Check-Checkboxes/index.html
@@ -8,7 +8,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 <body>
   <style>
diff --git a/11-Custom-Video-Player/index.html b/11-Custom-Video-Player/index.html
index 08fe037..1d0d9e9 100644
--- a/11-Custom-Video-Player/index.html
+++ b/11-Custom-Video-Player/index.html
@@ -10,7 +10,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/12-Key-Sequence-Detection/index.html b/12-Key-Sequence-Detection/index.html
index b09b151..959f3e2 100644
--- a/12-Key-Sequence-Detection/index.html
+++ b/12-Key-Sequence-Detection/index.html
@@ -29,7 +29,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
   <body>
     
diff --git a/13-Slide-in-on-Scroll/index.html b/13-Slide-in-on-Scroll/index.html
index 48e622a..1beed93 100644
--- a/13-Slide-in-on-Scroll/index.html
+++ b/13-Slide-in-on-Scroll/index.html
@@ -8,7 +8,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 <body>
 
diff --git a/14-JavaScript-References-VS-Copying/index.html b/14-JavaScript-References-VS-Copying/index.html
index 5bc7b64..ed75c42 100644
--- a/14-JavaScript-References-VS-Copying/index.html
+++ b/14-JavaScript-References-VS-Copying/index.html
@@ -20,7 +20,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 <body>
   <div class="message-box">
diff --git a/15-LocalStorage/index.html b/15-LocalStorage/index.html
index c3ee248..864d697 100644
--- a/15-LocalStorage/index.html
+++ b/15-LocalStorage/index.html
@@ -10,7 +10,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 
diff --git a/16-Mouse-Move-Shadow/index.html b/16-Mouse-Move-Shadow/index.html
index e45a2fb..9e5555d 100644
--- a/16-Mouse-Move-Shadow/index.html
+++ b/16-Mouse-Move-Shadow/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/17-Sort-Without-Articles/index.html b/17-Sort-Without-Articles/index.html
index 9959809..f2f4ec8 100644
--- a/17-Sort-Without-Articles/index.html
+++ b/17-Sort-Without-Articles/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/18-Adding-Up-Times-with-Reduce/index.html b/18-Adding-Up-Times-with-Reduce/index.html
index 61ad70e..8ebe3ed 100644
--- a/18-Adding-Up-Times-with-Reduce/index.html
+++ b/18-Adding-Up-Times-with-Reduce/index.html
@@ -14,7 +14,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 <body>
   <ul class="videos">
diff --git a/19-Webcam-Fun/index.html b/19-Webcam-Fun/index.html
index 38c2d7c..1f61630 100644
--- a/19-Webcam-Fun/index.html
+++ b/19-Webcam-Fun/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 <body>
 
diff --git a/20-Speech-Detection/index.html b/20-Speech-Detection/index.html
index 2da6d59..3651d57 100644
--- a/20-Speech-Detection/index.html
+++ b/20-Speech-Detection/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/21-Geolocation/index.html b/21-Geolocation/index.html
index 9eec059..c8e4f9f 100644
--- a/21-Geolocation/index.html
+++ b/21-Geolocation/index.html
@@ -10,7 +10,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/22-Follow-Along-Link-Highlighter/index.html b/22-Follow-Along-Link-Highlighter/index.html
index 57c41d8..29b9666 100644
--- a/22-Follow-Along-Link-Highlighter/index.html
+++ b/22-Follow-Along-Link-Highlighter/index.html
@@ -10,7 +10,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/23-Speech-Synthesis/index.html b/23-Speech-Synthesis/index.html
index 87844ec..711e410 100644
--- a/23-Speech-Synthesis/index.html
+++ b/23-Speech-Synthesis/index.html
@@ -10,7 +10,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 <body>
 
diff --git a/24-Sticky-Nav/index.html b/24-Sticky-Nav/index.html
index cfc446b..b3a42eb 100644
--- a/24-Sticky-Nav/index.html
+++ b/24-Sticky-Nav/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 <body>
 
diff --git a/25-Event-Capture,-Propagation,-Bubbling-and-Once/index.html b/25-Event-Capture,-Propagation,-Bubbling-and-Once/index.html
index 9c93af5..8ae44f4 100644
--- a/25-Event-Capture,-Propagation,-Bubbling-and-Once/index.html
+++ b/25-Event-Capture,-Propagation,-Bubbling-and-Once/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body class="bod">
diff --git a/26-Stripe-Follow-Along-Nav/index.html b/26-Stripe-Follow-Along-Nav/index.html
index 715e525..fbd0ed3 100644
--- a/26-Stripe-Follow-Along-Nav/index.html
+++ b/26-Stripe-Follow-Along-Nav/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/27-Click-and-Drag/index.html b/27-Click-and-Drag/index.html
index 44f2075..52110b7 100644
--- a/27-Click-and-Drag/index.html
+++ b/27-Click-and-Drag/index.html
@@ -9,7 +9,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 <body>
   <div class="items">
diff --git a/28-Video-Speed-Controller/index.html b/28-Video-Speed-Controller/index.html
index c1285b9..38d5229 100644
--- a/28-Video-Speed-Controller/index.html
+++ b/28-Video-Speed-Controller/index.html
@@ -10,7 +10,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/29-Countdown-Timer/index.html b/29-Countdown-Timer/index.html
index 270fa82..f85b414 100644
--- a/29-Countdown-Timer/index.html
+++ b/29-Countdown-Timer/index.html
@@ -11,7 +11,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/30-Whack-A-Mole/index.html b/30-Whack-A-Mole/index.html
index 176d609..59e1d29 100644
--- a/30-Whack-A-Mole/index.html
+++ b/30-Whack-A-Mole/index.html
@@ -11,7 +11,12 @@
     <script>
         window.va = window.va || function () { (window.vaq = window.vaq || []).push(arguments); };
     </script>
-    <script defer src="/_vercel/insights/script.js"></script>
+    <script defer src="/_vercel/insights/script.js"></script>    
+    <!-- Vercel Speed Insights -->
+    <script>
+        window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
+    </script>
+    <script defer src="/_vercel/speed-insights/script.js"></script>
 </head>
 
 <body>
diff --git a/package-lock.json b/package-lock.json
index 2a06881..48a79f4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,8 +10,7 @@
       "license": "MIT",
       "dependencies": {
         "@vercel/speed-insights": "^2.0.0"
-      },
-      "devDependencies": {}
+      }
     },
     "node_modules/@vercel/speed-insights": {
       "version": "2.0.0",
