Free SEO and AI-search tools

Each one answers a question about one page, with the finding and the fix. No sign-up. The same checks run locally with npx @rankcli/cli audit --url yoursite.com.

AI crawler access checker

Can ChatGPT, Claude and Perplexity read your site?

robots.txt AI crawler checker

What does your robots.txt tell the AI crawlers?

llms.txt checker

Does your site have a valid llms.txt?

Sitemap checker

Is your sitemap doing its job?

Structured data checker

What structured data does your page carry?

Security headers checker

Which security headers is your site missing?

Also free

Full SEO and AI-search audit — Every check on one page: 280+ findings with the evidence behind each.
AI visibility checker — Whether ChatGPT, Claude, Perplexity and Gemini can read a site and what they say about it.
ChatGPT checker — Is a site visible to ChatGPT?
Meta tag analyzer — Title, description, canonical and Open Graph tags, as a crawler reads them.
OG image preview — How a link to the page renders on social platforms.