diff --git a/index.html b/index.html
index fc6fbca..9cff8e9 100644
--- a/index.html
+++ b/index.html
@@ -3,6 +3,24 @@
 <head>
   <meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>Lynchmark – LLM Benchmark</title>
+
+  <meta property="og:title" content="Lynchmark – LLM Benchmark">
+  <meta property="og:site_name" content="Lynchmark">
+  <meta name="description" content="Lynchmark tests LLMs by requiring correct CDN imports and library-specific implementations to solve challenging browser-based JavaScript tasks.">
+  <meta property="og:description" content="Lynchmark tests LLMs by requiring correct CDN imports and library-specific implementations to solve challenging browser-based JavaScript tasks.">
+  <meta property="og:type" content="website">
+  <meta property="og:url" content="https://lynchmark.pages.dev/">
+  <link rel="canonical" href="https://lynchmark.pages.dev/">
+  <script type="application/ld+json">
+  {
+    "@context":"https://schema.org",
+    "@type":"WebSite",
+    "name":"Lynchmark",
+    "url":"https://lynchmark.pages.dev/",
+    "description":"Lynchmark – an automated benchmark for LLM coding abilities in a real browser+CDN environment."
+  }
+  </script>
+
   <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=DM+Serif+Display:ital@0;1&family=IBM+Plex+Mono:wght@400;500&display=swap" rel="stylesheet">
   <script src="https://cdn.tailwindcss.com"></script>
   <style>
