Next.js SEO Optimization Comprehensive SEO guide for Next.js App Router applications. Quick SEO Audit Run this checklist for any Next.js project: 1. Check robots.txt : 2. Check sitemap : 3. Check metadata : View page source, search for and 4. Check JSON-LD : View page source, search for 5. Check Core Web Vitals : Use PageSpeed Insights (pagespeed.web.dev) and the Search Console CWV report for field data — Lighthouse is lab-only and can't measure INP Essential Files app/layout.tsx - Root Metadata app/sitemap.ts - Dynamic Sitemap app/robots.ts - Robots Configuration was omitted intentionally —…