llms.txt Checker — Free

Check if your website has a llms.txt file — the README that tells AI models what you do.

What Is llms.txt?

llms.txt is a markdown file placed at the root of your website (e.g., https://yoursite.com/llms.txt) that provides LLM-friendly content about your product or service.

It was proposed in late 2024 as a standard way to help AI crawlers understand websites. Major AI companies including Anthropic, OpenAI, and Perplexity have shown increasing support for this format in their crawling behavior.

Yet fewer than 5% of websites have one. This is the single highest-impact AI-readiness fix most sites can make.

Example llms.txt File

# YourProduct Name

> Brief one-line description of what your product does.

## About
Detailed description of your product, who it serves,
and what problems it solves.

## Features
- Feature 1: description
- Feature 2: description

## Links
- [Website](https://yoursite.com)
- [Pricing](https://yoursite.com/pricing)
- [Documentation](https://docs.yoursite.com)
- [API Reference](https://api.yoursite.com)

## Pricing
Starting at $X/month. Free tier available.

## Contact
support@yoursite.com

How to Create Your Own (10 minutes)

  1. Create a new file called llms.txt
  2. Copy the template above and fill in your product details
  3. Place it at the root of your website so it's accessible at yoursite.com/llms.txt
  4. Create an expanded version called llms-full.txt with more detail
  5. Add both to your sitemap.xml for discovery
  6. Verify: Run our free scanner to confirm it's accessible

Check If You Have One

Our free scanner checks llms.txt plus 7 other signals.

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