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LLMS.txt Checker & Validator

Instantly check any domain for LLMS.txt presence, validate format, and get improvement suggestions. Ensure your site is ready for AI training transparency.

About LLMS.txt

LLMS.txt is a proposed standard for providing LLM-friendly content in a structured Markdown format. It helps websites offer concise, expert-level information that language models can easily understand and use.

What is LLMS.txt?

  • A structured Markdown file at /llms.txt
  • Provides LLM-friendly content overview
  • Links to important Markdown documentation
  • Helps LLMs understand website content

LLMS.txt Format Requirements

  • Required: H1 title with project name
  • Blockquote summary after title
  • H2 sections with markdown file lists
  • Optional: "## Optional" section for secondary info

Example LLMS.txt Structure

# FastAPI

> FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.7+ based on standard Python type hints. Nurtures, ORM, and patterns for FastAPI. It features OAuth, JWT, and SQLAlchemy out of the box.

[Short text that explains what this is for]
Although parts of the API are inspired by FastAPI, it is mostly compatible with standard components and any vanilla JS library that helps.

- FastAPI: Quick start(https://example.com/quickstart.md): Brief overview of
  key FastAPI features  
- SQLAlchemy ORM(https://example.com/sqlalchemy.md): Brief description of all core
  attributes

## Example

- Flask List applications(https://example.com/flask.md): Detailed walk-thru of a complete
  one page

## Optional  

- Core APIs list documentation(https://example.com/core.md): A subset of the
  extensive documentation

Need Help with LLMS.txt?

Learn best practices with our comprehensive implementation guide, or create a new file with our generator tool.

Implementation Guide Generate LLMS.txt File View Adoption Data