llms.txt is an emerging web standard (analogous to robots.txt) that tells AI language models and crawlers — including ChatGPT, Claude, Perplexity, and Gemini — what your site is about and where to find your most important content. It lives at the root of your domain (e.g. yoursite.com/llms.txt) and uses a simple Markdown format: a title, a blockquote description, and optional sections of links.

Does llms.txt improve my AI search visibility?

Yes. Sites with a well-structured llms.txt are more likely to be cited accurately by AI-powered search engines like Perplexity and ChatGPT's web search. The file helps AI systems understand your site's structure, key pages, and purpose — reducing misrepresentation and increasing the chance your content is cited in AI-generated answers.

Where do I put the llms.txt file?

Upload it to the root of your domain so it is accessible at https://yourdomain.com/llms.txt. It should be a plain text file served with Content-Type: text/plain. Most static hosts (Vercel, Netlify, Cloudflare Pages) will serve it automatically if placed in the public root directory.

What is the difference between llms.txt and robots.txt?

robots.txt tells web crawlers which pages they are allowed or not allowed to crawl. llms.txt tells AI language models what your site is about and highlights your most important pages — it is descriptive, not restrictive. Both can coexist in the same root directory and serve different purposes.

Free tool

llms.txt Generator

Generate a valid llms.txt file for your site so AI crawlers (ChatGPT, Claude, Perplexity) understand it.

Build your llms.txt

A 30-second wizard to generate a valid llms.txt you can drop at the root of your site.

Site name

Site URL

Description — one concise paragraph about your site

Sections (optional)

Group your most important pages — docs, blog, pricing, changelog, etc.

What is llms.txt?

llms.txt is an emerging convention (analogous to robots.txt) for telling AI systems — ChatGPT, Claude, Perplexity, Gemini — where to find your most important pages and what your site is about.

It lives at the root of your domain (https://yoursite.com/llms.txt) and uses a simple Markdown format: a title, a description in a blockquote, and optional sections of links.

LaunchList serves its own at /llms.txt — the same shape this tool generates.

Example llms.txt format

# Your Site Name

> One-paragraph description that explains what
> your site does, who it's for, and the value it
> provides to readers and AI agents.

## Docs

- [Getting started](https://…): How to install
- [API Reference](https://…): Full API docs

## Blog

- [How we built X](https://…): Deep dive

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