Seomatic — On-Page & SERP SEO Toolbar

Seomatic is a fully local Chrome extension that matches the feature set of the Ahrefs SEO Toolbar. No account, no API key, no server connection required — every analysis runs instantly from the page itself and your browser's own network requests. ON-PAGE SEO REPORT One panel, 9 tabs: Content (title/description length with pixel width, Google preview, H1–H6 hierarchy, reading time), Indexability (meta robots, canonical, hreflang, robots.txt, sitemap), Structured data (JSON-LD, Microdata, RDFa validation), Social (Open Graph and Twitter Card previews), Images (alt text, size, format filters), Links (internal/external/nofollow/broken link audit with HTTP status checks), HTTP (redirect chain, full request/response headers), Speed (LCP, CLS, INP, FCP, TTFB) and Compare (raw HTML vs. rendered DOM differences). METRICS BAR A fixed status bar on every page: health score, HTTP status, indexability, word/link count, Web Vitals and page weight — at a glance. SERP OVERLAY Title length (including pixel width), URL depth and HTTPS status shown under Google, Bing and DuckDuckGo results; export results to CSV. COUNTRY CHANGER View search results by country, language and city — no VPN needed. USER-AGENT SIMULATOR Simulate Googlebot, Bingbot, YandexBot, facebookexternalhit and common browsers/devices. BROKEN LINK & REDIRECT AUDIT Check the HTTP status of every link on a page with one click, and trace redirect chains. PRIVACY-FIRST Seomatic never sends your data anywhere, and never requires an account or API key. Network requests are made only to the page you're inspecting and its own domain (robots.txt, sitemap, on-page links). Settings and saved URL lists are stored only on your device, in chrome.storage.local. Shortcuts: Alt+S (toggle report), Alt+A (toggle metrics bar), Alt+H (toggle link highlighting).