Free technical SEO tools
Quick checks in the browser, no account needed. Every tool is also a check in the Seonar API, so you can run the same thing from code, CI or an AI agent.
- AI Crawler Checker Which AI bots your robots.txt lets in, and the rule that decides it.
- Redirect Checker Every hop, status code and the final URL of a redirect chain.
- Hreflang Checker Language tags, return links and broken alternates.
Need all ten checks at once?
The Seonar API runs robots.txt, sitemap, meta tags, canonical, structured data, security headers, redirects, hreflang, internal links and AI crawler checks in one call.
Get a free API key