The file is missing
This is not proof of an SEO problem. llms.txt is an emerging convention, not a prerequisite for being mentioned in AI answers. Prioritize accessible pages and useful content before optional files.
AI discovery-file tool · free · no signup
Free llms.txt checker
Check the root of your site for the emerging llms.txt convention. The file can help describe important content, but its presence does not guarantee crawling, citations or rankings.
Root-file availability
Readable response
Clear path to review
How to use the llms.txt checker
- Enter your public website domain. The tool checks the /llms.txt path at the site root.
- Review whether the file is reachable and readable, then open it yourself to inspect the content.
- If you choose to maintain a file, describe the site clearly and keep its links to important public pages current.
Understand your results and what to fix next
The file is readable
Review its description and links for accuracy. Availability alone does not establish that an AI service reads the file, follows its links or uses it in an answer.
The response is unexpected
Open /llms.txt and check that it serves the intended file rather than a login page, error or homepage fallback. Review the route or hosting configuration if the response is wrong.
Common questions
Does llms.txt replace robots.txt or my sitemap?
No. It is an optional content guide. Keep crawler permission rules in robots.txt and maintain your sitemap separately; publishing llms.txt does not override either.
Does this validate the complete file format?
No. This check focuses on availability and a readable response. Review the file manually for meaningful content and working links; a passing result is not a citation or ranking prediction.
Technical readiness is only the first step
Sikwati tracks the customer questions you choose through web-search-enabled OpenAI and Gemini API checks, saving dated mentions, links and competitor evidence over time.