Technical SEOllms.txtTutorial

Why Every Website Needs an llms.txt File in 2025

It is the robots.txt for the AI era. Learn why you need an llms.txt file to control how AI agents crawl your site.

A

ADvisor Team

January 21, 20255 min read

You have a `robots.txt` file. It tells Google what to index.

But who tells ChatGPT what to index? Or Claude? Or Apple Intelligence?

Enter llms.txt.

What is llms.txt?

It is a simple Markdown file that lives at the root of your domain (e.g., `advisorgeo.com/llms.txt`).

It serves two purposes:

1. Context: It gives AI agents a summary of your site in *their* language (natural text).

2. Navigation: It points agents to your most important links (without them having to crawl 1,000 junk pages).

Structure

```markdown

# My Brand Name

> We help SaaS companies grow.

Core Pages

  • [Pricing](/pricing): Our pricing tiers.
  • [Docs](/docs): Technical API documentation.
  • ```

    Why It's Viral

    Right now, less than 0.1% of websites have one.

    By adding one, you are giving AI agents a "cheat sheet" to your website.

    While your competitors force AI to scrape messy HTML, you are handing them a silver platter.

    ADvisor can generate this file for you automatically.

    [Generate your llms.txt now](/login).

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