Is your website ready for AI?

The AI Readiness Audit runs 41 checks on how AI systems access, discover and understand your site. Score and findings free, no account needed.

Free score, no sign-up. 41 checks, results in seconds.

Example llmstxt.studio audited 35 of 41 checks apply, run in 2.9s Read the full report

93/100

Excellent

  • 31 passed
  • 3 warnings
  • 1 error

We ran 35 checks in 2.9 seconds.

Where the score comes from

AI Access 100

No problems

AI Discovery 88

1 error

Content Understanding 93

1 warning

Machine-Readable Data 94

1 warning

Answer Readiness 88

1 warning

What we would fix first

  1. Error Dead links in llms.txt 5 of the 10 links we tested in your llms.txt do not work.
  2. Warning Skipped heading levels Your homepage skips heading levels: h2 → h6.
  3. Warning An incomplete Organization block Your Organization schema does not have sameAs.
  4. Warning No MCP address Your site gives no MCP address, in a manifest or in your llms.txt.

Five AI crawlers, checked by name. All five can reach llmstxt.studio today.

What an llms.txt looks like.

A markdown index of your site, at /llms.txt, listing the pages you want an AI system to read first. Ours is below. On our data a file under about 10,000 tokens made a site roughly twice as cheap for an agent to read; a bigger one cost more than having none.

Generate yours free Read our whole file Browse real examples What the format is for

llmstxt.studio/llms.txt 35 lines
# llmstxt.studio

> llmstxt.studio runs a free AI Readiness Audit of any website, 41 checks across access, discovery, content understanding, machine-readable data and answer readiness, and keeps a public llms.txt Registry that records what the ranked top million domains publish and how it changes over time.

The audit is public and needs no account: https://llmstxt.studio/audit/<domain>. Every check has its own documentation page stating what is tested, how it is detected and how to fix it. Adoption figures are computed over a stated ranked sample and read from the registry at render time; the live number is on the statistics page. A longer version of this file, including the documentation for all 41 checks, is at https://llmstxt.studio/llms-full.txt.

## Audit
- [AI Readiness Audit](https://llmstxt.studio/audit): Enter a domain and get a score with 41 findings in five categories. Free, no sign-up.
- [All 41 checks](https://llmstxt.studio/checks): What each check tests, why an AI system cares, how it is detected and how to fix it.
- [Bulk llms.txt check](https://llmstxt.studio/bulk-check): Check many domains for an llms.txt at once.
- [Features](https://llmstxt.studio/features): What the free audit, a free account and the paid plans each include.
- [Pricing](https://llmstxt.studio/pricing): Free, Pro and Premium plans.

## Registry and data
… 21 more lines

Our Checklist for Agentic AI

We provide free AI audits from everything we know about AI.

We have been counting since the start.

Every audited domain joins the llms.txt Registry, so your score is comparative: your site against what the web actually does, not against a checklist alone. Nobody can backfill that record later.

4.67%
of the top 1 million domains already publish an llms.txt
1M+
Websites checked
168,389
examples of llms.txt files
5,743
llms.txt files changed in the last thirty days

Adoption statistics Does llms.txt work? Browse the registry Examples directory

Stats on llms.txt Adoption

What we know so far from tracking websites adopting an llms.txt

All posts

Whatever your role...

For entrepreneurs
  • The score and every finding are free, with no account.
  • Each finding names the fix and where to apply it.
  • When the fix is an llms.txt, we write it from your sitemap.
  • Re-check the moment you have shipped, and see the score move.
Run your audit
SEO experts and agencies
  • Audit any domain. No account, no client login.
  • Every score is comparative: the site against what ranked domains actually do.
  • Pro keeps 30 days of history and re-runs the audit on a schedule.
  • Deep Site Crawl reads every page, not just the front door.
Compare the plans
You build the site
  • Every check has its own page: what we look at, how we decide, how to fix it.
  • robots.txt is parsed per RFC 9309, the way the crawlers parse it.
  • Schema is read field by field, not just spotted.
  • A browser is launched only when the delivered HTML is genuinely ambiguous.
Read how each check works

Ready to start?

  1. See your verdict Type your domain into the field above. The score, the five category readings and every finding are free. No account. Free
  2. Generate your own llms.txt file Each finding names the fix and where to apply it, and re-checks it the moment you have shipped. That comes with a free account. When the fix is an llms.txt, we write it from your sitemap. Free account
  3. Audit and monitor your llms.txt We monitor your llms.txt and ensure that it is available and valid. Pro
  4. Continuously improve We offer smart suggestions to improve your format, and work to improve as your website changes. Pro

Now run it on yours.

Free score, no sign-up. Or compare the plans

Questions

Is the AI Readiness Audit free?

Yes. The score and all 41 findings are free and need no account. The fix for each finding, a re-check once you have shipped it, and monitoring come with a free account. Paid plans add deep page-level crawls and scheduled re-audits.

Does this help me rank on Google?

No, and we will not tell you it does. Google Search does not read llms.txt. The audit measures how ready your site is for AI systems and agents: whether they can reach it, find what matters, understand it, and quote it safely.

What is llms.txt and why do I need it?

llms.txt is a markdown file that gives AI systems a structured summary of your website -- your key pages, topics, and how you'd like to be referenced. Think of it as a robots.txt, but for AI assistants like ChatGPT, Claude, and Gemini. It is based on an open specification and takes a few minutes to set up.

Is llms.txt the same as robots.txt?

No. robots.txt tells crawlers which URLs they may fetch; it does not decide what gets indexed or quoted. llms.txt is a curated summary of your site for AI systems to read. Neither file improves Google rankings. Whether llms.txt helps with AI at all is a fair question, and we answer it with every study we could find on our evidence page, Does llms.txt work?

Which AI models support llms.txt?

Any tool can choose to read it, and documentation platforms and coding agents do. No major AI provider has confirmed that its search product reads llms.txt, and independent crawler logs show AI bots fetch it rarely. Anthropic publishes one on its documentation site. Our registry measures how many of the ranked domains we check publish one; the live figure is on the statistics page. Treat it as a low-effort, forward-looking step, not a visibility lever.

How do I install the file on my website?

Upload the generated llms.txt file to your website's root directory (same level as your homepage). For example: yoursite.com/llms.txt. We provide detailed deployment instructions for popular platforms including Shopify, WordPress, GitHub Pages, and more.

Read on: what llms.txt is, whether it works, the complete guide, or how each check works.