Free Website SEO Checker

Yes, the Website SEO Checker is completely free with no registration required.

The Website SEO Checker examines meta tags, headings, content quality, page speed factors, mobile-friendliness, and other on-page SEO elements.

Absolutely. The Website SEO Checker processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.

Yes, the Website SEO Checker is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

No account or registration is needed. Simply open the Website SEO Checker in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

Yes, the Website SEO Checker is built following current Google Search guidelines and best practices. We regularly update the tool to reflect changes in search engine requirements.

Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.

The Website SEO Checker works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

The checker reads the HTML exactly as the server delivers it, before any client-side JavaScript runs. So if a page builds its headings, text, or links in the browser with a framework like React or Vue, that content is not yet in the raw source the tool parses, and it may report a thin word count, a missing H1, or few links even though the live page looks full. This is the same hurdle a search crawler faces when a page depends on rendering, which is why server-side rendering or pre-rendering matters for SEO. To confirm what crawlers actually see, compare the checker's output against your page's fully rendered HTML, and if there is a large gap, consider enabling SSR or static pre-rendering for the important content. A page that looks complete to a human but empty to the parser is a clear warning sign. Run the scan above to spot pages where critical content never reaches the source.

The score is a weighted roll-up of every individual check the tool runs across your title, meta description, headings, images, links, canonical, robots, structured data, and word count. Each check resolves to a pass, a warning, or a fail. The tool counts a pass as full credit and a warning as half credit, divides that by the total number of checks, and converts it to a percentage from 0 to 100. High-impact problems like a missing H1 or a noindex robots tag pull the figure down more because they fail outright rather than warn. Treat the number as a relative health indicator, not a ranking guarantee, since Google weighs hundreds of off-page signals no on-page scan can see. Scan your URL above and work down the recommendation list to raise it.

This tool is an HTML-level analyzer: it fetches your page source and grades the on-page elements present in the markup, such as the title tag, meta description, heading hierarchy, image alt text, canonical, structured data, and social tags. It does not measure performance or Core Web Vitals, because LCP, INP, and CLS require field and lab data gathered by actually loading and timing the page. PageSpeed Insights specializes in exactly that speed and rendering data, drawn from Chrome field measurements and a lab run, so the two are complementary rather than competing. For convenience, after a scan this tool links you straight to PageSpeed Insights, plus Google's Rich Results Test and Mobile-Friendly Test, for the same URL you checked. Use this on-page scan first to fix the markup, then follow the links to cover performance and rich-result eligibility for a full picture.

Google truncates page titles in search results by their rendered width in pixels, not by a fixed character limit, because a wide letter like W takes far more space than a narrow i. A 55-character title made of wide characters can get cut off while a longer one of narrow characters fits. The checker estimates your title's pixel width and flags it as a warning once it passes roughly 580px, the point near which Google tends to append an ellipsis. Character count is still shown as a quick reference, but pixel width is the more reliable guide to whether your full title will display. Aim to keep important keywords early and the title within the safe range. Paste your URL above to see your title's estimated width and whether it fits the SERP.

Generally no. Because browsers block cross-origin requests, the tool fetches the page you enter through a public CORS proxy that retrieves the HTML on your behalf. That proxy can only reach pages it can load anonymously, so URLs that sit behind a login, a password, or an IP-restricted staging environment usually return an error or the login screen's markup instead of your real content, producing a misleading score. It also means the address you check is visible to that third-party proxy, so only enter URLs you are comfortable sharing this way. For best results, scan public, indexable pages, since those are the ones search engines crawl anyway, or push a copy of your draft to a publicly reachable preview URL first and check that. That way the score reflects the exact markup a crawler would receive. Enter a public page above to get an accurate read on its on-page SEO.