TechSEO Inspector

Free on-page SEO auditor. Analyze meta tags, headings, images, links, schema, and indexability with a scored report.

Free, instant SEO audit for any web page. Click the toolbar icon, run the audit, and get a 0-100 SEO health score in seconds. TechSEO Inspector checks seven critical areas of on-page SEO and gives you actionable pass/warn/fail results for every check. WHAT IT CHECKS • Meta Tags — title, description, Open Graph, Twitter Cards, with a live SERP preview • Headings — H1 presence, heading hierarchy, empty or skipped levels • Images — alt text coverage, dimensions, modern formats (WebP/AVIF via <picture> detection), lazy loading • Links — internal/external link counts, broken link detection, empty anchor text • Schema — JSON-LD validation, recognized schema.org types, syntax checking • Indexability — noindex directives, canonical tags, robots.txt blocking, X-Robots-Tag • Page Speed — TTFB, First Contentful Paint, Largest Contentful Paint, CLS, and page weight scored against Core Web Vitals thresholds POWERFUL FEATURES • Side panel report — full detailed results without leaving the page • Click any module in the popup to jump straight to its section in the full report • SERP & social preview — see how your page appears in Google and on social platforms • Broken link checker — tests up to 50 URLs on the page, runs in the background so results appear instantly • PDF export — branded, downloadable A4 report • Clipboard copy — formatted text summary, ready to paste • Snapshot comparison — save audits and track changes over time • Dark mode — follows your system preference automatically • Keyboard shortcuts — Ctrl+Shift+S to audit, Ctrl+Shift+P for the side panel BUILT FOR SEO PROFESSIONALS Whether you're a technical SEO specialist, web developer, or content creator, TechSEO Inspector gives you the quick checks you need without leaving the browser. No account required, no limitations, completely free. PRIVACY • All analysis runs locally in your browser • No data is sent to any server — except broken link HEAD requests to URLs already on the page you're viewing and a robots.txt fetch from the page's own domain • No analytics, no tracking, no account By iviG Technical SEO — ivig.dev