title, description, canonical, OG, JSON-LD

curl -sI <url> | head -1

npx tsc --noEmit && npm run build

All 4 viewports. No overlaps. Footer visible.

node ~/record.js <port> --mobile

Submit from browser, confirm in inbox

GA4 or Vercel Analytics in layout.tsx

grep -rn "[DEMO]" app/ | wc -l → 0