File availability
Fetches /llms.txt and /llms-full.txt with status, content type, byte count, and fallback-page detection.
AI-readable discovery
llms.txt Checker
Check whether a public site exposes usable llms.txt and llms-full.txt files, then see line-level structure checks alongside robots.txt, sitemap, metadata, and AI crawler access signals.
Included checks
What you can check
Use the findings to decide which page or discovery-file changes to make first.
Markdown structure
Checks for a clear H1, short blockquote summary, H2 sections, Markdown links, and unfinished draft text.
Discovery context
Shows declared sitemap availability, robots.txt, canonical URL, indexability, and AI crawler policy. It does not verify that every llms.txt link is in the sitemap or is crawlable.
Methodology
How to read your report
Review the observed signals and check details before changing your site.
View check and scoring details
Same-origin public fetch
llms.txt checks start at the final page's origin. Public redirects and declared sitemaps can lead to another origin; every request keeps the same safety limits.
Structure before promises
llms.txt is experimental, so the report grades whether the file is readable and useful, not whether AI systems will use it.
No public saved reports
Submitted URLs are processed for the report response and are not stored as public reports.
Related tools
Choose your next check
Check a specific bot policy or explore another part of your page’s search readiness.
AI Crawler CheckerRun the full crawler access scan for robots.txt, AI bots, headers, page signals, sitemap, and llms.txt.llms.txt CheckerValidate AI-readable discovery files and see how they align with sitemap and crawler policy.AEO CheckerCheck technical Answer Engine Optimization readiness from public page and discovery signals.AI Search Visibility CheckerReview whether a URL has the technical foundations AI search systems need before any ranking or prompt testing.MethodologyUnderstand the scoring model, limitations, bot list, and public-scan boundary.
Scope of the report
Scope of the report
- llms.txt is optional and experimental. Its absence does not reduce the general crawler, AEO, or visibility checklist score.
- This checker does not guarantee AI visibility, citation, ranking, or inclusion in any answer engine.
- The free scan validates structure and related discovery signals; it does not recursively crawl every linked URL.
FAQ
Common questions
Short answers for searchers, site owners, and technical SEO teams comparing AI readiness tools.
What does this llms.txt checker validate?
It checks public /llms.txt and /llms-full.txt availability, content type, basic Markdown structure, summary and section presence, Markdown links, sitemap, robots.txt, and page-level AI-readiness signals.
Is llms.txt required for AI search visibility?
No. Google explicitly says its AI search features require no new AI text files or special structured data. This tool grades llms.txt only as an optional experiment, not a Google eligibility requirement.
Can I check a direct llms.txt URL?
Yes. You can enter a domain, homepage, page URL, or direct file URL. The scanner normalizes the origin and checks the standard same-origin discovery files.
Do you store my llms.txt scan?
No. The scanner does not create public saved reports.