SEO Inspector — On-Page SEO Analyzer

Instant on-page SEO audit: meta tags, headings, links, images, schema, hreflang, HTTP & security headers, robots.txt and sitemap.

SEO Inspector gives you a complete on-page SEO audit of any page in one click — no account, no tracking, everything runs locally in your browser. ★ INSTANT SEO SCORE A 0–100 score with a clear pass / warning / fail checklist: title and meta description length, single H1, indexability, canonical, viewport, HTTPS, mixed content, thin content and more. ★ WHAT YOU GET (10 tabs) - Overview — SEO score + actionable checks - Headings — full H1–H6 outline with skipped-level detection - Links — internal / external / nofollow counts with live filters - Images — images missing or with empty alt, previews and dimensions - Social — Open Graph & Twitter Card tags with a share preview - Schema — JSON-LD (pretty-printed), Microdata and RDFa types - Intl — html lang, charset and hreflang alternates - Headers — HTTP status, redirects and security headers (HSTS, CSP, X-Frame-Options…) - Robots — live robots.txt and sitemap.xml contents - Tools — one-click jump to PageSpeed, Rich Results, Schema Validator, W3C, Wayback, SSL Labs and more, with the URL pre-filled ★ HIGHLIGHT ON THE PAGE Visually outline all headings, images without alt, nofollow links or external links directly on the live page. ★ EXPORT Save the full report as a Markdown document, raw JSON, or export every link as CSV — or copy a summary to the clipboard. ★ PRIVACY FIRST SEO Inspector contains no remote code, no analytics and no telemetry. It only reads the active tab when you click the icon, and fetches the analyzed site's own robots.txt / sitemap / headers to show them to you. Nothing ever leaves your browser. Built for SEO specialists, developers and content teams who need a fast, honest on-page check every day.