diff --git a/docs/VaccineDistributionByZipcode.html b/docs/VaccineDistributionByZipcode.html
index 9639488843e..810cccd6841 100644
--- a/docs/VaccineDistributionByZipcode.html
+++ b/docs/VaccineDistributionByZipcode.html
@@ -5,6 +5,15 @@
     <meta charset="utf-8" />
     <meta content="width=device-width, initial-scale=1.0" name="viewport" />
     <title>Pfizer Vaccine Distribution by ZIP Code</title>
+    <!-- Google tag (gtag.js) -->
+    <script async src="https://www.googletagmanager.com/gtag/js?id=G-ERHYDH4P64"></script>
+    <script>
+        window.dataLayer = window.dataLayer || [];
+        function gtag() { dataLayer.push(arguments); }
+        gtag('js', new Date());
+
+        gtag('config', 'G-ERHYDH4P64');
+    </script>
     <link href="https://cdn.datatables.net/1.13.1/css/jquery.dataTables.css" rel="stylesheet" type="text/css" />
     <link href="batchCodeTable.css" rel="stylesheet" type="text/css" />
     <link href="forkMeOnGitHub.css" rel="stylesheet" type="text/css" />
diff --git a/docs/batchCodeTable.html b/docs/batchCodeTable.html
index 185b8f1dae0..11e93c7c02c 100644
--- a/docs/batchCodeTable.html
+++ b/docs/batchCodeTable.html
@@ -1,26 +1,42 @@
 <!DOCTYPE html>
 <html>
+
 <head>
-<meta charset="utf-8"/>
-<meta content="width=device-width, initial-scale=1.0" name="viewport"/>
-<title>Batch Codes of Coronavirus 2019 Vaccines</title>
-<link href="https://cdn.datatables.net/1.13.1/css/jquery.dataTables.css" rel="stylesheet" type="text/css"/>
-<link href="batchCodeTable.css" rel="stylesheet" type="text/css"/>
-<link href="forkMeOnGitHub.css" rel="stylesheet" type="text/css"/>
-<script crossorigin="anonymous" integrity="sha512-T5Bneq9hePRO8JR0S/0lQ7gdW+ceLThvC80UjwkMRz+8q+4DARVZ4dqKoyENC7FcYresjfJ6ubaOgIE35irf4w==" referrerpolicy="no-referrer" src="https://cdnjs.cloudflare.com/ajax/libs/noUiSlider/15.5.1/nouislider.min.js"></script>
-<link crossorigin="anonymous" href="https://cdnjs.cloudflare.com/ajax/libs/noUiSlider/15.5.1/nouislider.css" integrity="sha512-MKxcSu/LDtbIYHBNAWUQwfB3iVoG9xeMCm32QV5hZ/9lFaQZJVaXfz9aFa0IZExWzCpm7OWvp9zq9gVip/nLMg==" referrerpolicy="no-referrer" rel="stylesheet"/>
-<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
-<script charset="utf8" src="https://cdn.datatables.net/1.13.1/js/jquery.dataTables.min.js" type="text/javascript"></script>
-<script src="https://cdn.jsdelivr.net/npm/chart.js@4.2.0/dist/chart.umd.min.js"></script>
-<script src="./Utils.js"></script>
-<script src="./UIUtils.js"></script>
-<script src="./ColumnSearch.js"></script>
-<script src="./batchCodeTable.js"></script>
-<script src="./HistoDescrsProvider.js"></script>
-<script src="./HistogramChartView.js"></script>
-<script src="./BatchcodeCombinationSelection.js"></script>
-<script src="./HistogramView.js"></script>
-<script>
+  <meta charset="utf-8" />
+  <meta content="width=device-width, initial-scale=1.0" name="viewport" />
+  <title>Batch Codes of Coronavirus 2019 Vaccines</title>
+  <!-- Google tag (gtag.js) -->
+  <script async src="https://www.googletagmanager.com/gtag/js?id=G-ERHYDH4P64"></script>
+  <script>
+    window.dataLayer = window.dataLayer || [];
+    function gtag() { dataLayer.push(arguments); }
+    gtag('js', new Date());
+
+    gtag('config', 'G-ERHYDH4P64');
+  </script>
+  <link href="https://cdn.datatables.net/1.13.1/css/jquery.dataTables.css" rel="stylesheet" type="text/css" />
+  <link href="batchCodeTable.css" rel="stylesheet" type="text/css" />
+  <link href="forkMeOnGitHub.css" rel="stylesheet" type="text/css" />
+  <script crossorigin="anonymous"
+    integrity="sha512-T5Bneq9hePRO8JR0S/0lQ7gdW+ceLThvC80UjwkMRz+8q+4DARVZ4dqKoyENC7FcYresjfJ6ubaOgIE35irf4w=="
+    referrerpolicy="no-referrer"
+    src="https://cdnjs.cloudflare.com/ajax/libs/noUiSlider/15.5.1/nouislider.min.js"></script>
+  <link crossorigin="anonymous" href="https://cdnjs.cloudflare.com/ajax/libs/noUiSlider/15.5.1/nouislider.css"
+    integrity="sha512-MKxcSu/LDtbIYHBNAWUQwfB3iVoG9xeMCm32QV5hZ/9lFaQZJVaXfz9aFa0IZExWzCpm7OWvp9zq9gVip/nLMg=="
+    referrerpolicy="no-referrer" rel="stylesheet" />
+  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
+  <script charset="utf8" src="https://cdn.datatables.net/1.13.1/js/jquery.dataTables.min.js"
+    type="text/javascript"></script>
+  <script src="https://cdn.jsdelivr.net/npm/chart.js@4.2.0/dist/chart.umd.min.js"></script>
+  <script src="./Utils.js"></script>
+  <script src="./UIUtils.js"></script>
+  <script src="./ColumnSearch.js"></script>
+  <script src="./batchCodeTable.js"></script>
+  <script src="./HistoDescrsProvider.js"></script>
+  <script src="./HistogramChartView.js"></script>
+  <script src="./BatchcodeCombinationSelection.js"></script>
+  <script src="./HistogramView.js"></script>
+  <script>
     $(document).ready(function () {
       const batchCodeTableInitializer =
         new BatchCodeTableInitializer(
@@ -33,6 +49,7 @@
     });
   </script>
 </head>
+
 <body>
 <span id="forkongithub"><a href="https://github.com/KnollFrank/HowBadIsMyBatch">Fork me on GitHub</a></span>
 <h1>Batch Codes of Coronavirus 2019 Vaccines</h1>
@@ -45,46 +62,47 @@
 <p>
 <b>Check out your batch code</b> (Last updated: <span id="last_updated">March 10, 2023</span>)
   </p>
-<table class="display" id="batchCodeTable">
-<thead>
-<tr>
-<th></th>
-<th>Batch</th>
-<th>Adverse Reaction Reports</th>
-<th>Deaths</th>
-<th>Disabilities</th>
-<th>Life Threatening Illnesses</th>
-<th>Company</th>
-<th>Countries</th>
-<th>Severe reports</th>
-<th>Lethality</th>
-</tr>
-</thead>
-</table>
-<p><b>Data Source:</b>
-<a href="https://vaers.hhs.gov/data/datasets.html" target="_blank">Vaccine Adverse Event Reporting System
+  <table class="display" id="batchCodeTable">
+    <thead>
+      <tr>
+        <th></th>
+        <th>Batch</th>
+        <th>Adverse Reaction Reports</th>
+        <th>Deaths</th>
+        <th>Disabilities</th>
+        <th>Life Threatening Illnesses</th>
+        <th>Company</th>
+        <th>Countries</th>
+        <th>Severe reports</th>
+        <th>Lethality</th>
+      </tr>
+    </thead>
+  </table>
+  <p><b>Data Source:</b>
+    <a href="https://vaers.hhs.gov/data/datasets.html" target="_blank">Vaccine Adverse Event Reporting System
       (VAERS)</a>
-</p>
-<template id="template-canvas">
-<canvas></canvas>
-</template>
-<template id="template-selectBatchcodeCombination">
-<div>
-<label>Select batchcode combination:
+  </p>
+  <template id="template-canvas">
+    <canvas></canvas>
+  </template>
+  <template id="template-selectBatchcodeCombination">
+    <div>
+      <label>Select batchcode combination:
         <select id="batchcodesSelect" name="batchcodes">
-</select>
-</label>
-</div>
-</template>
-<template id="template-chartWithSlider">
-<div class="chartWithSlider">
-<div class="chartContainer">
-<canvas class="canvas"></canvas>
-</div>
-<div class="sliderContainer">
-<div class="slider"></div>
-</div>
-</div>
-</template>
+        </select>
+      </label>
+    </div>
+  </template>
+  <template id="template-chartWithSlider">
+    <div class="chartWithSlider">
+      <div class="chartContainer">
+        <canvas class="canvas"></canvas>
+      </div>
+      <div class="sliderContainer">
+        <div class="slider"></div>
+      </div>
+    </div>
+  </template>
 </body>
+
 </html>
\ No newline at end of file
