What is llms.txt?

The definitive guide to understanding llms.txt files and their purpose

Understanding llms.txt Files

An llms.txt file is a standardized text format designed to help AI language models better understand and interact with your website. Similar to how robots.txt guides search engine crawlers, llms.txt provides structured information that AI models can use to comprehend your site's content, purpose, and key information.

As AI becomes more prevalent in search and content discovery, having a properly configured llms.txt file is becoming essential for modern websites. It ensures that AI models can accurately represent your content and provide helpful information about your site to users.

The Purpose of llms.txt Files

1. AI Comprehension

LLMs.txt files help AI models understand your website's structure, main topics, and key information without having to process every page individually.

2. Improved AI Responses

When AI models reference your site, they can provide more accurate and relevant information based on the structured data in your llms.txt file.

3. SEO for AI

As AI-powered search becomes more common, llms.txt acts as SEO optimization specifically for AI systems, ensuring your content is properly indexed and understood.

LLMs.txt File Example

Here's a typical llms.txt file example showing the standard structure:

# Company: Example Corp
# URL: https://example.com
# Description: Leading provider of example services

## Overview
Example Corp specializes in providing high-quality examples 
for documentation and tutorials worldwide.

## Main Services
- Example Generation
- Documentation Services  
- Tutorial Creation

## Key Pages
- /about - Learn about our company
- /services - Our service offerings
- /contact - Get in touch

## API Documentation
API Base URL: https://api.example.com
Documentation: https://docs.example.com

## Contact
Email: info@example.com
Support: support@example.com

LLMs.txt Specification

The llms.txt specification includes several key sections that help structure your content:

Header Information: Company name, URL, and brief description
Overview Section: Detailed explanation of what your site/company does
Main Content Areas: Key services, products, or content categories
Important Pages: Links to crucial pages with descriptions
API Information: If applicable, API endpoints and documentation
Contact Details: How to reach you for various purposes
Usage Guidelines: Any specific instructions for AI models

How to Create an llms.txt File

Option 1: Use Our Generator

The easiest way to create an llms.txt file is using our free llms.txt generator. It automatically crawls your website and creates a properly formatted file.

Generate Your llms.txt File

Option 2: Manual Creation

You can manually create an llms.txt file by following the specification above and saving it as a plain text file at the root of your website (e.g., yoursite.com/llms.txt).

Best Practices for llms.txt Files

Keep the file concise but comprehensive
Update it regularly as your site content changes
Use clear, descriptive language
Include all important sections of your website
Verify the file is accessible at yoursite.com/llms.txt
Test with AI models to ensure proper formatting

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