Next.js SEO & Performance Analyzer
Paste HTML or fetch a live URL. We score SEO, performance, and Next.js-oriented best practices — with fixes you can ship.
Source
Fetch a live page or paste raw HTML. Analysis runs in your browser.
Remote fetch uses our Edge API (timeouts & SSRF protections). Results are heuristic.
SEO coverage
Titles, descriptions, Open Graph, canonicals, robots, and heading outline.
Performance hints
Scripts, images, inline styles, and approximate DOM weight from markup.
Next.js signals
Detects Next artifacts, image optimization URLs, and sensible link patterns.
Why use this SEO & performance analyzer?
Search engines and users reward fast, well-described pages. This tool inspects static HTML for common SEO gaps (titles, meta descriptions, Open Graph, canonical URLs, robots directives) and surfaces practical performance hints such as script volume, lazy-loading coverage on images, inline styles, and rough DOM size — useful before you run Lighthouse or deploy to production.
For Next.js apps, the analyzer looks for framework fingerprints like __NEXT_DATA__, /_next/static/, and next/image URLs so you can confirm optimized delivery and internal linking patterns from a real HTML snapshot.
Scores are heuristic: they complement — but do not replace — Core Web Vitals, field data, and Google Search Console. Use the copy and export actions to share findings with your team or attach JSON to tickets.