SEO Report Tools

Website Audits · Live check · Free

llms.txt Checker

Check whether a site publishes /llms.txt and whether it follows the proposed format.

What this tool does

Fetches /llms.txt and tests for the H1 title, summary blockquote, sections and Markdown links.

Who should use it

Site owners who published or plan to publish an llms.txt.

How it works

The file is requested from the site root and examined line by line against the llmstxt.org proposal.

How to use it

  1. Enter the full address of the page or site, including https://.
  2. Press the run button. The check makes live requests from our server and can take up to about 30 seconds.
  3. Read the findings first, then open the tables for detail. Each finding has a severity and a suggested fix.
  4. Copy or download the results if the tool offers it, fix the issues on your site and run the check again to confirm.

Practical example

A file that starts with plain text instead of "# Title" is an error.

Understanding the results

A missing file is informational, not an error.

Limitations

This is a live check of the URL, made from our server; results can differ from what search engines or visitors see from other locations. The format is a community proposal and not a search-engine requirement.

Accuracy and report transparency

Findings come from a real HTTP request made by our server. The result panel shows the checked URL, the UTC time of the check and the data source, and separates measured findings from limitations. We do not show random or sample metrics.

Privacy

The URL you enter is used only to make the request and is not stored in our database. Results may be cached for about ten minutes to limit repeat requests, and the checker blocks local and private network addresses. See the Privacy Policy.

Try these next

llms.txt GeneratorCreate an llms.txt file in the community-proposed Markdown format.AI Citation Readiness CheckerCheck observable page characteristics that make content easy for search and AI systems to parse and quote.Robots.txt CheckerFetch a site's live robots.txt, validate it and test whether Googlebot may crawl a path.

Frequently asked questions

Does llms.txt improve AI visibility?

No major engine has confirmed using it. Treat it as optional documentation.

Is my data sent to your server?

The URL you enter is sent to our server so it can request that page. We do not store the page content or your results. Only an anonymous usage counter is kept, and short-lived cached results may be held for about ten minutes to reduce repeat requests.

How accurate are the results?

Findings are verified against the live HTTP response our server received at the time shown. They can differ from what Google or your visitors see, because of location, caching, JavaScript rendering or bot blocking.

Is this tool really free?

Yes. There is no account, limit or paid plan. The site is supported by advertising, which is disclosed on our Advertising Disclosure page.

References