SEO improvements

frontend/index.html

@@ -4,6 +4,52 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>SchoolCompare | Compare Primary School Performance</title>
+
+    <!-- Primary Meta Tags -->
+    <meta name="description" content="Compare primary school KS2 performance across England. Search, filter and compare Reading, Writing and Maths results for thousands of schools.">
+    <meta name="keywords" content="school comparison, KS2 results, primary school performance, England schools, SATs results">
+    <meta name="author" content="SchoolCompare">
+    <meta name="robots" content="index, follow">
+
+    <!-- Canonical -->
+    <link rel="canonical" href="https://schoolcompare.co.uk/">
+
+    <!-- Open Graph / Facebook -->
+    <meta property="og:type" content="website">
+    <meta property="og:url" content="https://schoolcompare.co.uk/">
+    <meta property="og:title" content="SchoolCompare | Compare Primary School Performance">
+    <meta property="og:description" content="Compare primary school KS2 performance across England. Search and compare Reading, Writing and Maths results.">
+    <meta property="og:site_name" content="SchoolCompare">
+
+    <!-- Twitter -->
+    <meta name="twitter:card" content="summary">
+    <meta name="twitter:url" content="https://schoolcompare.co.uk/">
+    <meta name="twitter:title" content="SchoolCompare | Compare Primary School Performance">
+    <meta name="twitter:description" content="Compare primary school KS2 performance across England.">
+
+    <!-- JSON-LD Structured Data -->
+    <script type="application/ld+json">
+    {
+        "@context": "https://schema.org",
+        "@type": "WebApplication",
+        "name": "SchoolCompare",
+        "url": "https://schoolcompare.co.uk",
+        "description": "Compare primary school KS2 performance across England",
+        "applicationCategory": "EducationalApplication",
+        "operatingSystem": "Web",
+        "offers": {
+            "@type": "Offer",
+            "price": "0",
+            "priceCurrency": "GBP"
+        },
+        "author": {
+            "@type": "Organization",
+            "name": "SchoolCompare",
+            "url": "https://schoolcompare.co.uk"
+        }
+    }
+    </script>
+
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link href="https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700&family=Playfair+Display:wght@600;700&display=swap" rel="stylesheet">