What is LLMS.txt?

LLMS.txt is a standardized file format that helps website owners control how AI language models and their crawlers access and index website content. Similar to robots.txt for search engines, LLMS.txt provides specific instructions for AI crawlers like GPTBot, Claude, Perplexity, and Firecrawl.

Why Do You Need LLMS.txt?

As AI language models become more prevalent, they increasingly crawl websites to gather training data and provide real-time information. LLMS.txt gives you control over:

- **Which AI crawlers** can access your site

- **What content** they can index

- **How frequently** they can crawl

- **Which paths** are allowed or restricted

How LLMS.txt Works

The LLMS.txt file is placed in your website's root directory (e.g., https://yoursite.com/llms.txt). AI crawlers check this file before accessing your content and respect the rules you've defined.

Basic Structure

User-agent: GPTBot

Allow: /

Disallow: /private

User-agent: Claude-Web

Allow: /blog

Disallow: /admin

Common Use Cases

1. **Protect Private Content**: Block AI crawlers from accessing admin panels, user dashboards, or sensitive data

2. **Control API Access**: Prevent AI from indexing API endpoints

3. **Manage Bandwidth**: Set crawl delays to reduce server load

4. **Selective Indexing**: Allow only specific sections of your site to be indexed

Getting Started

The easiest way to create an LLMS.txt file is using our [free generator tool](/). Simply select which crawlers to allow, configure your paths, and download the generated file.

Best Practices

- Always test your LLMS.txt file after deployment

- Keep rules simple and clear

- Update regularly as your site structure changes

- Monitor crawler activity in your server logs

Ready to create your LLMS.txt file? [Use our free generator](/) to get started in minutes.