diff --git a/index.html b/index.html
deleted file mode 100644
index 9c40ce9..0000000
--- a/index.html
+++ /dev/null
@@ -1,31 +0,0 @@
-<!DOCTYPE html>
-
-<!-- Inferencium - Website - Index -->
-<!-- Version: 3.1.0-beta.1 -->
-
-<!-- Copyright 2022 Jake Winters -->
-<!-- SPDX-License-Identifier: BSD-3-Clause -->
-
-
-<html lang="en">
-		<head>
-				<meta charset="utf-8"/>
-				<meta name="viewport" content="width=device-width, initial-scale=1"/>
-				<link rel="stylesheet" href="main.css"/>
-				<title>Inferencium</title>
-		</head>
-		<body>
-				<nav class="navbar">
-						<div><a href="index.html"><img src="asset/img/logo-inferencium-no_text.png" width="110px" height="110px"/></a></div>
-						<div><a href="index.html" class="title">Inferencium</a></div>
-						<div><a href="about.html">About</a></div>
-						<div><a href="contact.html">Contact</a></div>
-						<div><a href="blog.html">Blog</a></div>
-						<div><a href="documentation.html">Documentation</a></div>
-						<div><a href="source.html">Source</a></div>
-						<div><a href="key.html">Key</a></div>
-						<div><a href="changelog.html">Changelog</a></div>
-						<div><a href="directory.html">Directory</a></div>
-				</nav>
-		</body>
-</html>
diff --git a/index.xhtml b/index.xhtml
new file mode 100644
index 0000000..7788bda
--- /dev/null
+++ b/index.xhtml
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+
+<!-- Inferencium - Website - Index -->
+<!-- Version: 4.0.0-beta.1 -->
+
+<!-- Copyright 2022 Jake Winters -->
+<!-- SPDX-License-Identifier: BSD-3-Clause -->
+
+
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+		<head>
+				<meta charset="utf-8"/>
+				<meta name="viewport" content="width=device-width, initial-scale=1"/>
+				<link rel="stylesheet" href="main.css"/>
+				<title>Inferencium</title>
+		</head>
+		<body>
+				<nav class="navbar">
+						<div><a href="index.xhtml"><img src="asset/img/logo-inferencium-no_text.png" width="110px" height="110px"/></a></div>
+						<div><a href="index.xhtml" class="title">Inferencium</a></div>
+						<div><a href="about.xhtml">About</a></div>
+						<div><a href="contact.xhtml">Contact</a></div>
+						<div><a href="blog.xhtml">Blog</a></div>
+						<div><a href="documentation.xhtml">Documentation</a></div>
+						<div><a href="source.xhtml">Source</a></div>
+						<div><a href="key.xhtml">Key</a></div>
+						<div><a href="changelog.xhtml">Changelog</a></div>
+						<div><a href="directory.xhtml">Directory</a></div>
+				</nav>
+		</body>
+</html>
