llms.txt Checker
Validate whether your site exposes an llms.txt file and gives AI agents a clear guide to your most useful resources.
An llms.txt checker verifies whether a site provides an AI-readable guide file and whether that file points agents toward important pages, docs, and Markdown resources.
TruboRank AI checks llms.txt presence and related discovery signals so teams can provide AI systems with clearer instructions about website purpose and important content.
Check your website's AI discoverability signals.
Run a free scan for robots.txt, sitemap discovery, Link headers, Markdown readiness, and AI bot access.
What this checker analyzes
- llms.txt availability
- links to key pages or documentation
- relationship with llms-index.md
- Link header exposure
- machine-readable descriptions
Why it matters
llms.txt can help AI agents understand which resources matter. It is not a ranking guarantee, but it can improve machine guidance.
Common issues
- No llms.txt file
- File exists but has no useful links
- Outdated links
- No Markdown index
- No Link header pointing to the file
How to use this checker
Start with a live scan of your website URL. Review the status of each signal, then fix the highest-impact blockers first. Technical blockers should usually be handled before content optimization because AI systems need access before they can evaluate page quality.
- Run the free scan on your homepage or a high-value page.
- Review crawl access, sitemap discovery, headers, and AI-readable resources.
- Open each warning and confirm whether it affects important public content.
- Fix server-level issues such as robots.txt, Link headers, and content types.
- Improve page-level content with direct answers, summaries, FAQs, and internal links.
- Re-run the scan after changes to verify the result.
What a strong result looks like
A strong result means important pages are crawlable, key resources are discoverable, and the content gives AI systems enough structure to understand the topic quickly.
- robots.txt allows the crawlers you want to support.
- sitemap.xml exposes important URLs.
- headers or HTML links point to useful AI-readable resources.
- content includes concise answers and supporting context.
Who should use it
This checker is useful for founders, marketers, SEO teams, developers, agencies, and technical content teams that want to improve AI search readiness without guessing.
It is especially useful before launching new landing pages, documentation, product pages, comparison pages, or AI visibility campaigns.
Implementation checklist
- Confirm the page returns a successful HTTP status.
- Confirm the page is not blocked by robots.txt.
- Make sure the page appears in your sitemap or is internally linked.
- Add direct answer content for the primary user question.
- Add related links to nearby AEO, GEO, llms.txt, or AI crawler topics.
- Document technical changes so they can be repeated across the site.
How Pro helps fix it
Pro provides llms.txt guidance, generator-style prompts, and implementation steps for connecting llms.txt with your content structure.
FAQ
What is llms.txt?
llms.txt is a proposed text file that gives AI systems a concise guide to important website resources.
Is llms.txt required?
No. It is optional, but it can help provide clearer machine-readable guidance.
Where should llms.txt be placed?
Usually at the site root, such as example.com/llms.txt.