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Next.js Technical SEO: Pre-Production Checklist

A concrete checklist for a Next.js App Router site that's Google-ready: metadata, sitemap, JSON-LD, performance, and canonicals.

Ilyesse Hamcherif1 min de lecture

Next.js can be excellent for SEO — if you don’t skip the basics. Here’s the checklist I run before every production deploy.

Metadata & canonicals

  • Unique title and description per page
  • alternates.canonical aligned with the public URL
  • hreflang if you serve multiple languages
  • Open Graph + 1200×630 image

Indexing

  • Up-to-date app/sitemap.ts (pages + articles)
  • robots.txt: allow public routes, block /admin and /api
  • No accidental noindex in production

Structured content

  • One H1 only
  • H2 / H3 that describe the content (not “Section 1”)
  • Internal links to contact / projects / related articles
  • JSON-LD: WebSite, Person, or Article depending on the page

Performance

  • Sized images (next/image or equivalent)
  • Fonts via next/font
  • Avoid heavy JS until interaction (Three.js, etc. lazy-loaded)
  • Target Lighthouse mobile > 90 (performance + SEO + accessibility)

After go-live

  1. Google Search Console → property + sitemap
  2. Check URL in the inspection tool
  3. Publish 1–2 useful pieces of content per month (blog)

Need a technical SEO audit on an existing site? Request a quote.

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Next.js Technical SEO: Pre-Production Checklist | Ilyesse Hamcherif