diff --git a/.gitignore b/.gitignore
index c74df0d..36852e4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 ### Project Specific
 # Files
+env.php
 *.zip
 *.tar*
 
diff --git a/env.php.example b/env.php.example
new file mode 100644
index 0000000..be1431a
--- /dev/null
+++ b/env.php.example
@@ -0,0 +1,3 @@
+<?php
+
+$domain = '';
diff --git a/index.php b/index.php
index 8d8adb2..4f89ada 100644
--- a/index.php
+++ b/index.php
@@ -1,5 +1,7 @@
-<!DOCTYPE html>
-<html lang="en-US" class="no-js">
+<?php
+require_once "env.php";
+?><!DOCTYPE html>
+<html lang="en-US">
     <head>
         <meta charset="utf-8">
         <meta name="viewport" content="width=device-width, initial-scale=1">
@@ -15,7 +17,7 @@
 
         <meta name="rating" content="General">
 
-        <meta name="url" content="">
+        <meta name="url" content="<?php echo $domain; ?>/">
         <meta name="subject" content="CSS color conversion tool">
         <meta name="description" content="Convert colors in a batch among HSL(a), RGB(a), and Hex">
 
@@ -25,31 +27,39 @@
         <meta name="twitter:dnt" content="on">
 
         <!-- analytics -->
-        <!-- None -->
+        <!-- none -->
+
+        <!-- Helps prevent duplicate content issues -->
+        <link href="<?php echo $domain; ?>" rel="canonical">
+
+        <!-- Android web manifest file -->
+        <!-- <link href="<?php echo $domain; ?>/.webmanifest" rel="manifest"> -->
 
         <!-- Files listing who was involved in this site and copyrights -->
-        <link href="humans.txt" rel="author">
-        <link href="gpl-3.0-standalone.html" rel="copyright">
+        <link href="<?php echo $domain; ?>/humans.txt" rel="author">
+        <link href="<?php echo $domain; ?>/gpl-3.0-standalone.html" rel="copyright">
 
         <!-- Favicon -->
-        <link href="favicon.ico" rel="icon" sizes="16x16" type="image/icon">
-        <link href="favicon.svg" rel="icon" type="image/svg+xml">
-        <link href="favicon.png" rel="icon" sizes="192x192">
+        <link href="<?php echo $domain; ?>/favicon.ico" rel="icon" sizes="16x16" type="image/icon">
+        <link href="<?php echo $domain; ?>/favicon.svg" rel="icon" type="image/svg+xml">
+        <link href="<?php echo $domain; ?>/favicon.png" rel="icon" sizes="192x192">
 
         <!-- Font preloads (should be done for each font file) -->
         <!-- Open Sans license: fonts/OpenSans/LICENSE.txt -->
-        <link href="fonts/OpenSans/OpenSans-Regular.woff2" rel="preload" as="font" type="font/woff2" crossorigin="anonymous">
-        <link href="fonts/OpenSans/OpenSans-Bold.woff2" rel="preload" as="font" type="font/woff2" crossorigin="anonymous">
+        <link href="<?php echo $domain; ?>/fonts/OpenSans/OpenSans-Regular.woff2" rel="preload" as="font" type="font/woff2" crossorigin="anonymous">
+        <link href="<?php echo $domain; ?>/fonts/OpenSans/OpenSans-Bold.woff2" rel="preload" as="font" type="font/woff2" crossorigin="anonymous">
         <!-- Open Sans license: fonts/Ubuntu/UFL.txt -->
-        <link href="fonts/Ubuntu/Ubuntu-Regular.woff2" rel="preload" as="font" type="font/woff2" crossorigin="anonymous">
-        <link href="fonts/Ubuntu/Ubuntu-Bold.woff2" rel="preload" as="font" type="font/woff2" crossorigin="anonymous">
+        <link href="<?php echo $domain; ?>/fonts/Ubuntu/Ubuntu-Regular.woff2" rel="preload" as="font" type="font/woff2" crossorigin="anonymous">
+        <link href="<?php echo $domain; ?>/fonts/Ubuntu/Ubuntu-Bold.woff2" rel="preload" as="font" type="font/woff2" crossorigin="anonymous">
 
         <!-- CSS -->
-        <link href="css/vendor/tailwind-2.2.4.min.css" rel="stylesheet" media="screen">
-        <link href="css/app.css" rel="stylesheet" media="screen">
+        <link href="<?php echo $domain; ?>/css/vendor/tailwind-2.2.4.min.css" rel="stylesheet" media="screen">
+        <link href="<?php echo $domain; ?>/css/app.css" rel="stylesheet" media="screen">
 
-        <script src="js/vendor/vue-2.6.14.min.js" defer></script>
-        <script src="js/app.js" defer></script>
+        <!-- JS that must be executed before the document is loaded -->
+        <script src="<?php echo $domain; ?>/js/vendor/vue-2.6.14.min.js" defer></script>
+        <script src="<?php echo $domain; ?>/js/app.js" defer></script>
+        <!-- -->
     </head>
     <body class="font-open-sans antialiased">
         <div id="app" class="flex flex-col items-center justify-center w-full min-h-screen">
@@ -92,5 +102,9 @@
                 </div>
             </div>
         </div>
+        <div class="absolute bottom-0 p-8 text-center w-full">
+            You can take a look at <a href="https://git.ditoforge.com/brian/batch-color-converter" title="Source code for this page">this terrible code over on my git server</a>.
+        </div>
     </body>
 </html>
+<!-- END OF LINE. -->
