diff --git a/index.html b/index.html
index 03ddd66..e8d5ed9 100644
--- a/index.html
+++ b/index.html
@@ -1,6 +1,17 @@
-<html>
+<!-- Document declaration specifying that this is an HTML5 document -->
+<!DOCTYPE html>
+<!-- Added lang attribute for SEO purposes -->
+<html lang="en">
 
   <head>
+    <!-- Document's character encoding -->
+    <meta charset="UTF-8">
+    <!-- This is destined for IE browsers, telling them to use the latest rendereing engine
+    or simply use chrome's if installed -->
+    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
+    <!-- Important tag not to neglect in any website
+    It sets the page's width to the device's viewport width and the zoom level to 100% (no zoom) -->
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>XIVCensus - Character statistics for FFXIV</title>
 
 
