diff --git a/index.html b/index.html
index 8544fe7..8f2b951 100644
--- a/index.html
+++ b/index.html
@@ -1,28 +1,104 @@
 <!doctype html>
-<html lang="en">
+<html lang="en-PH">
   <head>
     <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
 
+    <!-- Favicon & Touch Icons -->
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <link rel="apple-touch-icon" href="/apple-touch-icon.png" />
+    <link rel="manifest" href="/site.webmanifest" />
+    <meta name="theme-color" content="#2563eb" />
+
     <!-- Primary SEO -->
     <title>TapTrack — Attendance That Runs Itself</title>
     <meta name="description" content="TapTrack is an on-premises NFC student attendance system built for Philippine schools. Students tap their ID card, parents get an SMS, records update instantly. No cloud. No subscription." />
-    <meta name="keywords" content="NFC attendance, student attendance Philippines, RFID attendance system, DepEd attendance, school attendance automation, SMS parent notification" />
+    <meta name="keywords" content="NFC attendance, student attendance Philippines, RFID attendance system, DepEd attendance, school attendance automation, SMS parent notification, on-premises attendance, school ID tap system" />
     <meta name="author" content="TapTrack" />
+    <meta name="robots" content="index, follow" />
+    <link rel="canonical" href="https://taptrack.ph/" />
 
-    <!-- Open Graph / Facebook -->
+    <!-- Open Graph / Facebook / LinkedIn -->
     <meta property="og:type" content="website" />
     <meta property="og:url" content="https://taptrack.ph/" />
+    <meta property="og:site_name" content="TapTrack" />
+    <meta property="og:locale" content="en_PH" />
     <meta property="og:title" content="TapTrack — Attendance That Runs Itself" />
-    <meta property="og:description" content="On-premises NFC attendance for Philippine schools. Students tap, parents get SMS, records update automatically." />
-    <meta property="og:image" content="/screenshots/58IBI.png" />
+    <meta property="og:description" content="On-premises NFC attendance for Philippine schools. Students tap their ID, parents get an SMS, and records update automatically — no cloud, no subscription." />
+    <meta property="og:image" content="https://taptrack.ph/screenshots/58IBI.png" />
+    <meta property="og:image:width" content="1280" />
+    <meta property="og:image:height" content="800" />
+    <meta property="og:image:alt" content="TapTrack live attendance dashboard showing real-time student check-ins" />
+    <meta property="og:image:type" content="image/png" />
 
     <!-- Twitter Card -->
     <meta name="twitter:card" content="summary_large_image" />
+    <meta name="twitter:site" content="@taptrackph" />
     <meta name="twitter:title" content="TapTrack — Attendance That Runs Itself" />
-    <meta name="twitter:description" content="On-premises NFC attendance for Philippine schools. Students tap, parents get SMS, records update automatically." />
-    <meta name="twitter:image" content="/screenshots/58IBI.png" />
+    <meta name="twitter:description" content="On-premises NFC attendance for Philippine schools. Students tap their ID, parents get an SMS, and records update automatically — no cloud, no subscription." />
+    <meta name="twitter:image" content="https://taptrack.ph/screenshots/58IBI.png" />
+    <meta name="twitter:image:alt" content="TapTrack live attendance dashboard showing real-time student check-ins" />
+
+    <!-- JSON-LD Structured Data -->
+    <script type="application/ld+json">
+    {
+      "@context": "https://schema.org",
+      "@graph": [
+        {
+          "@type": "Organization",
+          "@id": "https://taptrack.ph/#organization",
+          "name": "TapTrack",
+          "url": "https://taptrack.ph/",
+          "logo": {
+            "@type": "ImageObject",
+            "url": "https://taptrack.ph/favicon.svg"
+          },
+          "description": "TapTrack builds on-premises NFC student attendance systems for Philippine schools.",
+          "areaServed": {
+            "@type": "Country",
+            "name": "Philippines"
+          }
+        },
+        {
+          "@type": "SoftwareApplication",
+          "@id": "https://taptrack.ph/#software",
+          "name": "TapTrack",
+          "url": "https://taptrack.ph/",
+          "applicationCategory": "EducationApplication",
+          "operatingSystem": "Windows, Linux",
+          "description": "On-premises NFC student attendance system for Philippine schools. Students tap their ID card, parents receive an SMS, and records update instantly — no cloud, no subscription required.",
+          "featureList": [
+            "NFC/RFID student ID tap-in",
+            "Instant SMS parent notifications",
+            "Real-time attendance dashboard",
+            "Offline-first on-premises operation",
+            "Student directory management",
+            "Attendance reports and export"
+          ],
+          "screenshot": "https://taptrack.ph/screenshots/58IBI.png",
+          "offers": {
+            "@type": "Offer",
+            "price": "0",
+            "priceCurrency": "PHP",
+            "description": "Contact for pricing"
+          },
+          "publisher": {
+            "@id": "https://taptrack.ph/#organization"
+          }
+        },
+        {
+          "@type": "WebSite",
+          "@id": "https://taptrack.ph/#website",
+          "url": "https://taptrack.ph/",
+          "name": "TapTrack",
+          "description": "On-premises NFC attendance for Philippine schools.",
+          "publisher": {
+            "@id": "https://taptrack.ph/#organization"
+          }
+        }
+      ]
+    }
+    </script>
 
     <!-- Inter Font -->
     <link rel="preconnect" href="https://fonts.googleapis.com" />
diff --git a/public/robots.txt b/public/robots.txt
new file mode 100644
index 0000000..f3a79bf
--- /dev/null
+++ b/public/robots.txt
@@ -0,0 +1,4 @@
+User-agent: *
+Allow: /
+
+Sitemap: https://taptrack.ph/sitemap.xml
diff --git a/public/site.webmanifest b/public/site.webmanifest
new file mode 100644
index 0000000..457df02
--- /dev/null
+++ b/public/site.webmanifest
@@ -0,0 +1,17 @@
+{
+  "name": "TapTrack",
+  "short_name": "TapTrack",
+  "description": "On-premises NFC student attendance for Philippine schools.",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#ffffff",
+  "theme_color": "#2563eb",
+  "icons": [
+    {
+      "src": "/favicon.svg",
+      "sizes": "any",
+      "type": "image/svg+xml",
+      "purpose": "any maskable"
+    }
+  ]
+}
diff --git a/public/sitemap.xml b/public/sitemap.xml
new file mode 100644
index 0000000..20056ec
--- /dev/null
+++ b/public/sitemap.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <url>
+    <loc>https://taptrack.ph/</loc>
+    <lastmod>2026-03-17</lastmod>
+    <changefreq>monthly</changefreq>
+    <priority>1.0</priority>
+  </url>
+</urlset>
