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llms.txt Checker & Validator
Validate file location, structure and linked content targets.
About this check
What does this tool check?
llms.txt is a markdown file at your site root that tells language models what your site is and where the canonical content lives. We check it exists, starts with an H1, groups links into sections, and uses markdown links instead of bare URLs.
How should I read the result?
llms.txt is an emerging convention, not a standard — having one helps models discover your content, but no vendor guarantees to read it. Treat it as an aid, not a switch.
What should I do next?
Keep the linked pages crawlable and fresh; a llms.txt pointing at blocked pages helps nobody.
Sources: llms.txt spec
Check this next
Access rules change without warning
robots.txt edits and CDN bot rules usually ship without anyone telling you. The DaleGEO workspace re-checks on a schedule and alerts you when a crawler starts getting blocked.
Run a full analysis- Scheduled re-checks with change alerts
- Visibility and citations across the mainland AI engines
- Fixes ranked by impact, with content generated