llms.txt Explained — What It Is and Why You Need It

What is llms.txt?

llms.txt is a text file at your domain root (e.g. yoursite.com/llms.txt) that gives AI crawlers and LLMs a structured overview of key pages, services, pricing and FAQs — similar to robots.txt, but aimed at AI tools.

While robots.txt tells search engines what they may index, llms.txt tells AI systems what matters most on your site for citation. The format is simple Markdown — headings, links and short descriptions.

Why you need llms.txt in 2026

• •Faster access to key pages for AI crawlers
• •Explicit pricing and timelines — easier for AI to cite
• •Part of professional AEO setup
• •Low implementation cost — one static file
• •Trust signal — serious businesses care about the AI channel

How to create llms.txt — step by step

Keep llms.txt updated when prices or services change — part of AEO optimization at €60/month.

See BeoCodex live example: https://www.beocodex.com/llms.txt

• •List 5–10 most important URLs (services, pricing, contact, about)
• •Write 1–2 direct-answer sentences per page
• •Add a Pricing section with exact prices
• •Include FAQs in question–answer format
• •Save as llms.txt in /public (Next.js) or server root
• •Verify it loads at yourdomain.com/llms.txt

llms.txt vs sitemap.xml vs robots.txt