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llms.txt Generator

Generate a new llms.txt file from your site. The generator reads your homepage and writes the file, with a summary and a list of key pages that you can edit before saving it at the root of your site. To test a file you already have against the current spec, use the llms.txt checker.

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llms.txt is a short guide to your site for AI engines

llms.txt is a Markdown file at the root of your site, at /llms.txt. It gives AI engines a short summary of the site and links to the pages that matter most.

Generate builds a new llms.txt from your site. To test a file you already have against the v2 spec, use the llms.txt checker.

What the checker reports

The checker fetches /llms.txt from your site and tells you whether the file is reachable. It then checks the file against the llms.txt spec.

The spec asks for these parts:

  1. An H1 title
  2. A short summary in a blockquote
  3. Sections headed by H2
  4. Link lists under each section
  5. An "Optional" section for links that can be skipped

An example llms.txt

Here is a small file for a made-up invoicing product:

# Acme

> Invoicing software for freelance designers.

## Core pages
- [Pricing](https://acme.io/pricing): Plans and what each includes
- [Features](https://acme.io/features): What the product does
- [Docs](https://acme.io/docs): Setup and API

## About
Founded 2021. Used by 4,000 independent designers.

llms.txt, robots.txt and schema

llms.txt describes your site. robots.txt controls which crawlers can reach it, and schema adds structured facts to individual pages.

llms.txtrobots.txtSchema (JSON-LD)
PurposeDescribe the siteControl crawler accessStructure page facts
Confirmed consumptionLimitedUniversalWidespread
Effort5 minutes5 minutesOngoing

How much llms.txt matters

Adoption is limited, and an llms.txt file will not move citations by itself. It takes about 5 minutes, and writing it makes you say plainly what you sell, who it is for and which pages matter.

Start with the page and the access. The Free AEO Checker scores one page on how easy it is to quote, the AI crawler checker shows whether robots.txt lets the AI crawlers in, and the AI visibility checker shows whether ChatGPT names your brand.

Common questions

An llms.txt file is a Markdown file at /llms.txt that gives AI engines a short summary of your site and links to its most useful pages.
An llms.txt file won't get you cited by ChatGPT by itself. Adoption is limited, so treat it as one small piece next to crawler access and pages that answer questions directly.
The Optional section is still allowed for secondary links. In v2 it no longer has a mechanical meaning: v1 used it to tell tools what to leave out when they needed a shorter context.
Some sites publish a full-content variant called llms-full.txt. It is harmless and unproven, the same as llms.txt.

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