That SEO Extension

Instantly check the page's SEO status, whether it's on server-side or client-side rendering.

Audit the SEO of any page in one click. That SEO Extension scans the page you're viewing and shows what's right, what's wrong, and how to fix it: titles, meta tags, headings, links, images, structured data, hreflang, and social sharing. No account, no setup, no switching between tools. HOW IT WORKS Click the toolbar icon on any page. Results appear instantly in the popup, organized into tabs. WHAT IT CHECKS Essentials - Title tag and meta description, with length checks - Canonical URL: flags a canonical that points to a different page, an invalid URL, a missing href, or an empty href - Duplicate tags: when a title, description, canonical, or robots tag appears more than once, every occurrence is listed, compared between the server HTML and the rendered page - Meta robots and X-Robots-Tag directives, robots.txt, XML sitemaps, viewport, language, word count, and HTML page size - URL parameters that change the page's content Headings - Full H1–H6 outline - Missing or duplicate H1s, hidden headings, empty headings, and headings with no real text (such as an image-only heading) - Click any heading to jump to it on the page, highlighted - Export to CSV Links - Internal, external, nofollow, hidden, no-anchor-text, no-href, and invalid-URL links - Reachability checking: the first 30 links are checked automatically, the rest on demand - Click a link to find it on the page, and export to CSV Images - Missing and empty alt text, missing or invalid src - Thumbnail previews on hover, and CSV export Assets - JS and CSS files the page loads, whether each is reachable, and whether robots.txt blocks it Schema - JSON-LD types and validity, a copy button for each block, plus microdata and RDFa counts Hreflang - Alternate-language tags from the HTML, HTTP headers, and XML sitemaps, compared side by side - Reachability and reciprocal-link checks Social - Open Graph and Twitter Card tags, with a preview of how the page looks when shared SUMMARY TAB Every issue the extension finds, from every tab, in one list ranked High, Medium, and Low priority. Each one shows exactly where the problem is and a plain-English recommendation for fixing it. More than 40 issue types are covered. PRIVACY Everything runs in your browser. The extension does not collect, store, or send any data about you or the pages you visit, and it has no server of its own. To check whether links, images, assets, and hreflang targets are reachable, it makes requests from your browser to the same URLs the page already references, and nothing else. PERMISSIONS - Active tab and scripting: used to read the page you're on when you open the extension - Access to all sites: used only to check whether URLs the page references (links, images, assets, hreflang targets, sitemaps) are reachable, since they're often on other domains Built for SEO specialists, developers, content teams, and site owners who want a fast first-pass audit without leaving the page.