AI Info Page Validator

What Is an llms.txt File and Why Does Your Site Need One?

An llms.txt file is a standardized document placed at your website root (e.g., example.com/llms.txt) that provides AI systems with accurate, structured information about your brand. Think of it as a "robots.txt for brand identity" — instead of controlling crawl access, it controls how AI describes your company.

Currently, no major competitor offers an llms.txt validation tool, making this an uncontested opportunity to differentiate your site. As AI-powered search grows, having a well-structured llms.txt ensures ChatGPT, Claude, Perplexity, and Google AI Overviews represent your brand accurately.

What Should an llms.txt File Include?

• Company name and description — A concise summary of what your company does
• Products and services — Key offerings with brief descriptions
• Pricing information — Plan tiers and pricing (if public)
• Contact details — Email, support channels, and social links
• Key differentiators — What makes your product unique
• Important URLs — Links to homepage, pricing, docs, and key pages

How Is llms.txt Different from robots.txt?

robots.txt controls which bots can crawl your site. llms.txt controls how AI systems describe your brand. Both are important for AI search optimization (AEO), but they serve different purposes. Use our LLM Bot Checker to validate your robots.txt, and this tool to validate your llms.txt.

How to Create an llms.txt File

1. Create the file: Use our AI Info Page Template tool to generate one, or write it manually in markdown format.
2. Include key sections: Add headings for Products, Pricing, Contact, and Key Facts.
3. Use markdown formatting: AI systems parse markdown well — use headings (##), bullet points (-), and bold (**text**) for structure.
4. Deploy to your root: Upload the file so it's accessible at yoursite.com/llms.txt.
5. Validate: Use this tool to check structure, content quality, and completeness.