What is llms.txt? The Complete Guide

Learn how to create llms.txt files and automate llms.txt generation for your website. Compare the best llms.txt generator options available.

Understanding llms.txt: Benefits and Implementation

The llms.txt format spec provides a standardized protocol for controlling how AI language models interact with your content. Whether you need an llms.txt for eCommerce sites or content platforms, our llms.txt generator API and tools help you maintain control over your digital presence.

When comparing llms.txt vs robots.txt, it's important to note that while robots.txt manages search engine crawlers, llms.txt specifically controls AI training models. Many hosts supporting llms.txt now recommend using both files for comprehensive crawler management.

For Shopify stores and ecommerce platforms, our llms.txt tool for Shopify simplifies implementation. Choose between llms.txt generator vs manual creation based on your needs - our free generator provides an easy starting point while premium tools offer advanced automation features.

AI Crawler Control

Use our free llms.txt generator tool to control how AI models like ChatGPT and Gemini access and learn from your website content.

Privacy Protection

The llms.txt format spec allows you to block AI crawlers from accessing sensitive areas while allowing beneficial content indexing.

Content Optimization

Learn how to use llms.txt for SEO and guide AI models to your most important content with our integration guide.

Simple Implementation

Compare llms.txt tools vs plugins - our free llms.txt generator online requires no complex setup or technical knowledge.

How llms.txt Works: Format Specification

The File Structure

# llms.txt
User-agent: *
Allow: /blog/*
Disallow: /private/
Disallow: /admin/

What It Means

User-agent: Specifies which AI crawler the rule applies to

Allow: Permits AI crawlers to access these paths

Disallow: Blocks AI crawlers from these paths

Key Differences: llms.txt vs robots.txt

Understanding when to use each protocol for maximum protection

robots.txt

For Search Engines

  • Controls search engine crawlers
  • Affects SEO and search rankings
  • Used by Google, Bing, etc.
  • Focuses on indexing control

llms.txt

For AI Systems

  • Controls AI language models
  • Affects AI recommendations
  • Used by ChatGPT, Claude, Gemini
  • Focuses on content access control