Create an llms.txt file in two minutes.

An llms.txt example

Here is a complete file for a fictional accountant. Only the first line, the H1 with the name, is required. The rest follows the format proposed at llmstxt.org.

# Fernhill Accounting

> Fixed-fee accounts and tax returns for limited companies in Bristol, UK.

Fees are agreed before work starts. We don't offer payroll or audits.

## Services
- [Year-end accounts](https://fernhillaccounting.example/accounts): fixed fee, filed within 10 working days of receiving records
- [Company tax returns](https://fernhillaccounting.example/tax): returns for limited companies

## About
- [Fees and terms](https://fernhillaccounting.example/fees): how our fixed fees work
- [Contact](https://fernhillaccounting.example/contact): phone, email and office hours

## Optional
- [Company history](https://fernhillaccounting.example/history)

How to create an llms.txt file

1. Write your name as the H1, then one sentence on what you do, for whom and where, as a blockquote.
2. Add a short note with the facts AI tools often get wrong: areas you don't cover, services you don't offer, how pricing works.
3. List your five to ten most useful pages under H2 headings, each as [name](full https address) with a short note.
4. Put nice-to-have links under a heading called Optional, which tools can skip when they need less.
5. Save it as a plain text file named llms.txt, upload it, and open it in a browser to check.

The generator above does the first four steps for you and checks that every link is a full https address.

How to check an llms.txt file

Switch the tool to Check a file and enter your website. It fetches yourdomain.com/llms.txt, or reads a file you paste, and checks it against the llmstxt.org format:

• The address returns a plain text file, not a web page or an error.
• The first line is an H1 with your name, the only part the format requires.
• A blockquote summary, a line starting with >, comes before the first section.
• Sections use H2 headings, with no other headings in the file.
• Every list item in a section is a Markdown link with a full https address.

Passing means the file follows the format. It doesn't mean an AI tool will read it, or that the pages it links to are allowed in your robots.txt; the Robots.txt Tester checks that.

Where to place the llms.txt file

At the root of your domain, so it opens at https://yourdomain.com/llms.txt, the same place as robots.txt. The current version of the proposal also allows a file inside a section of a site, covering the pages under that path, but one file at the root is all most businesses need.

There is nowhere to submit it. Tools that use the file fetch it from that address when they need it.

Does llms.txt work, and will it help SEO?

It won't help Google rankings. Google says you don't need new machine-readable files, AI text files or Markdown to appear in Google Search, and that adding them neither helps nor harms. The proposal itself says the file is used on demand, when an AI tool needs information about a site while helping someone, and some developer platforms, OpenAI's developer docs among them, publish one.

Treat it as a small courtesy to the AI tools that look for it. What decides whether ChatGPT or Google's AI answers mention you is crawler access, clear pages and what other sites say about you. Check access with the Robots.txt Tester and a page's readiness with the AEO Checker. For the full explanation, read What is llms.txt?.

What to do after you publish it

• Check it opens at /llms.txt as plain text, not as a web page.
• Make sure every page it links to is public and allowed in robots.txt.
• Update it when your services, prices or key pages change.
• Don't expect a traffic change, and don't pay a monthly fee for it.