diff --git a/frontend/app/layout.tsx b/frontend/app/layout.tsx
index 499bfbd..909f150 100644
--- a/frontend/app/layout.tsx
+++ b/frontend/app/layout.tsx
@@ -12,7 +12,7 @@ const inter = Inter({
   display: 'swap',
 });
 
-const SITE_URL = 'https://policyengine.org/us/keep-your-pay-act';
+const SITE_URL = 'https://www.policyengine.org/us/keep-your-pay-act';
 
 export const metadata: Metadata = {
   title: 'Keep Your Pay Act Calculator',
@@ -30,12 +30,22 @@ export const metadata: Metadata = {
     siteName: 'PolicyEngine',
     type: 'website',
     locale: 'en_US',
+    images: [
+      {
+        url: 'https://www.policyengine.org/assets/posts/keep-your-pay-act-calculator.png',
+        width: 1200,
+        height: 630,
+      },
+    ],
   },
   twitter: {
     card: 'summary_large_image',
     title: 'Keep Your Pay Act Calculator',
     description:
       'Calculate your personal and national tax impact under the Keep Your Pay Act.',
+    images: [
+      'https://www.policyengine.org/assets/posts/keep-your-pay-act-calculator.png',
+    ],
   },
   other: {
     'theme-color': '#2C7A7B',
@@ -57,6 +67,27 @@ export default function RootLayout({
   return (
     <html lang="en" className={inter.className}>
       <head>
+        <script
+          type="application/ld+json"
+          dangerouslySetInnerHTML={{
+            __html: JSON.stringify({
+              '@context': 'https://schema.org',
+              '@type': 'WebApplication',
+              name: 'Keep Your Pay Act Calculator',
+              description:
+                "Calculate your personal and national tax impact under the Keep Your Pay Act.",
+              url: SITE_URL,
+              applicationCategory: 'FinanceApplication',
+              operatingSystem: 'Any',
+              offers: { '@type': 'Offer', price: '0', priceCurrency: 'USD' },
+              provider: {
+                '@type': 'Organization',
+                name: 'PolicyEngine',
+                url: 'https://www.policyengine.org',
+              },
+            }),
+          }}
+        />
         <Script
           src={`https://www.googletagmanager.com/gtag/js?id=${GA_ID}`}
           strategy="afterInteractive"
diff --git a/frontend/app/robots.ts b/frontend/app/robots.ts
index cad010f..502d0f6 100644
--- a/frontend/app/robots.ts
+++ b/frontend/app/robots.ts
@@ -6,6 +6,6 @@ export default function robots(): MetadataRoute.Robots {
       userAgent: '*',
       allow: '/',
     },
-    sitemap: 'https://policyengine.org/us/keep-your-pay-act/sitemap.xml',
+    sitemap: 'https://www.policyengine.org/us/keep-your-pay-act/sitemap.xml',
   };
 }
diff --git a/frontend/app/sitemap.ts b/frontend/app/sitemap.ts
index 1743e67..3cd1916 100644
--- a/frontend/app/sitemap.ts
+++ b/frontend/app/sitemap.ts
@@ -3,8 +3,8 @@ import type { MetadataRoute } from 'next';
 export default function sitemap(): MetadataRoute.Sitemap {
   return [
     {
-      url: 'https://policyengine.org/us/keep-your-pay-act',
-      lastModified: new Date(),
+      url: 'https://www.policyengine.org/us/keep-your-pay-act',
+      lastModified: '2026-03-10',
       changeFrequency: 'weekly',
       priority: 1,
     },
