Technical SEO for Next.js

Created by CodeCraft LLC

Implement and review technical SEO in Next.js App Router apps

Product and technology names are trademarks of their respective owners, used only to identify what this skill covers. CodeCraft LLC is not affiliated with or endorsed by them.

by Jace (@jamick)v1.2.0 · updated 2026-10-16Report copyright infringement

Description

Implement and review technical SEO in Next.js App Router apps — Metadata API (metadata/generateMetadata, metadataBase, title templates), canonical URLs and alternates/hreflang, robots.ts and sitemap.ts (including large/dynamic sitemaps), Open Graph/Twitter images (opengraph-image), JSON-LD structured data with safe escaping (Product, Offer, Organization, BreadcrumbList), correct status codes (notFound, permanent redirects), noindex for previews/private pages, rendering strategy for crawlability (static/ISR vs dynamic), Core Web Vitals, and marketplace/listing page patterns. Use whenever the user asks about SEO, metadata, sitemaps, robots, social previews, rich results, search indexing, or duplicate content in a Next.js app.

#frameworks#seo#nextjs

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Changelog

v1.2.0Oct 16, 2026Latest

Added

references/technical-seo-fundamentals.md: framework-independent technical SEO fundamentals - merged from the former seo-optimizer skill.

v1.1.0Oct 3, 2026

Changed

Checked against the official documentation (October 2026).
Added that the sitemap id from generateSitemaps is async in Next.js 16.
Added an explicit AI-crawler policy in robots.ts (separate training/answer user agents) and the status of llms.txt as a proposal, not access control.

v1.0.1Oct 3, 2026

Changed

Added a trademark notice to the README.

v1.0.0Oct 2, 2026

Added

First release.