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llms.txt generator and checker

Type a website. We check its llms.txt against the format, or write a draft from the site’s own pages: its sitemap, page titles and descriptions. No AI writing, nothing made up, ready to copy.

What llms.txt is

A plain-text file at /llms.txt that lists a website’s most useful pages for AI tools, in a simple Markdown format proposed in 2024 (llmstxt.org): a title, a one-line summary, then sections of links.

# Kato Electrical

> Licensed electricians in Vancouver, Burnaby and North Vancouver: panel upgrades, EV chargers, rewiring and repairs.

## Services

- [Panel upgrades](https://example.com/panel-upgrades): 100 to 200 amp upgrades, permits included
- [EV charger installation](https://example.com/ev-chargers): home and strata chargers

## Optional

- [Blog](https://example.com/blog): guides for homeowners

The honest part. As of November 2026, none of the major AI companies (OpenAI, Google, Anthropic, Perplexity) has said its assistants read a website’s llms.txt when answering questions, and Google has said it doesn’t use it. Some AI coding tools and agents do read it. So add one if you like: it takes minutes and does no harm. But it won’t, on its own, change what ChatGPT says about your business.

What matters more for AI answers

Two things we measure every day for the businesses we track:

  1. Can each AI’s crawler actually read your site? Firewalls and robots.txt rules often block OpenAI’s or Google’s AI crawler without anyone noticing.
  2. Do your pages answer customers’ questions plainly? Who you are, what you do, where, and how much, in the first lines.
See what AI says about your business — free AI visibility statistics →

Common questions

Does ChatGPT read llms.txt?

As of November 2026, OpenAI hasn’t said ChatGPT reads it when answering, and neither have Google, Anthropic or Perplexity. Google has said it doesn’t use it.

Should a small business add one?

It’s quick and harmless, so there’s little reason not to. Just spend your real effort on crawler access and clear pages first.

Where do I put it?

At the root of your website, so it opens at https://yourdomain.com/llms.txt as plain text, not as a web page.

Do you store the websites I check?

No. We fetch the public pages to build the result and don’t keep them.