llms.txt Validator

Check whether your domain publishes an llms.txt file — the plain-text map that tells AI crawlers what matters on your site — and whether it's well-formed.

No signup. We fetch https://yourdomain/llms.txt and report what's actually there.

Checking llms.txt…

What is llms.txt?

llms.txt is a proposed standard: a plain-text file at your domain root that tells AI assistants and crawlers what to read and link to. Think of it as robots.txt for LLMs.

Only 72% of top SaaS domains publish one — from our open benchmark of 100 domains. Adding one is a low-effort way to stand out.

A minimal example
# Example.com
> AI agents and crawlers: here's what matters.

## Docs
- [Getting Started](https://example.com/docs/start): Quick setup guide
- [API Reference](https://example.com/docs/api): Full endpoint docs

## More
- [Blog](https://example.com/blog): Product updates

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