FREE SEO TOOLS
Free Technical SEO tools
Find the technical settings that decide whether a page can be crawled and indexed: robots.txt rules, redirects, canonicals, indexing directives and hreflang.
- Free, no sign-up
- Browser tools upload nothing
- Live checks fetch public pages only
- FreeRobots.txt ValidatorValidate a robots.txt file line by line: directives outside groups, relative sitemaps, unsupported noindex and more.
- FreeRobots.txt URL TesterTest whether Googlebot, Bingbot, GPTBot or any crawler may fetch a URL, and see the exact rule that decides it.
- FreeIndexability CheckerCheck whether Google may crawl and index a page: status, redirects, robots.txt, meta robots, X-Robots-Tag and canonical in one verdict.
- FreeRedirect Chain CheckerFollow every redirect from a URL, hop by hop, with status codes and timings, and spot chains, temporary redirects and dead ends.
- FreeCanonical Consistency CheckerCheck that a page's canonical tag, Link header, redirects, og:url and hreflang agree, and that the canonical target is live and indexable.
TOOLS
Technical SEO tools
Free technical SEO tools: validate robots.txt, test crawler access and check indexing signals.
Robots.txt Validator
Validate a robots.txt file line by line: directives outside groups, relative sitemaps, unsupported noindex and more.
Robots.txt URL Tester
Test whether Googlebot, Bingbot, GPTBot or any crawler may fetch a URL, and see the exact rule that decides it.
Indexability Checker
Check whether Google may crawl and index a page: status, redirects, robots.txt, meta robots, X-Robots-Tag and canonical in one verdict.
Redirect Chain Checker
Follow every redirect from a URL, hop by hop, with status codes and timings, and spot chains, temporary redirects and dead ends.
Canonical Consistency Checker
Check that a page’s canonical tag, Link header, redirects, og:url and hreflang agree, and that the canonical target is live and indexable.
Hreflang Validator
Validate a page’s hreflang tags: language and country codes, self reference, duplicates, x-default and return links from each alternate.
Core Web Vitals Checker
Check a page’s real-user LCP, INP and CLS from the Chrome UX Report, for the page and its whole site.
Mobile SEO Checker
Fetch a page as a phone and as a desktop crawler and compare them: viewport, title, canonical, robots, content, links and structured data.
JavaScript SEO Dependency Checker
See what a crawler that does not run JavaScript gets from a page: text, title, canonical, links and structured data in the server’s HTML.
Hreflang Tag Generator
Turn a table of page versions by language into reciprocal hreflang link tags or an XML sitemap with xhtml:link entries.
Robots.txt Generator
Generate a robots.txt for WordPress, WooCommerce or a custom site, with sitemap lines, checked by the robots.txt validator.
Need this for a whole website, over time?
The NdovuSEOLabs platform connects your own Search Console, analytics and server logs, and audits every page on a schedule.