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LLMs.txt Explained in 2 Minutes and How to Write One blog post thumbnail

LLMs.txt explained in 2 minutes and how to write one

LLMs.txt is a small but powerful file you can place at the root of your website to guide large language models (LLMs) like ChatGPT, Claude, and Gemini directly to your most important content.

Think of it as an AI-friendly roadmap for your site: no clutter, just clearly prioritized links in a structured, Markdown format.

Why LLMs.txt is important 🧠

Search engines have robots.txt and sitemap.xml for crawling, but LLMs work differently they read and interpret content directly.
With llms.txt, you can:

  • Highlight high-value content like guides, docs, or product pages.
  • Help AI tools skip irrelevant or outdated material.
  • Improve your chances of being cited or accurately summarized by AI systems.

It’s an emerging best practice early adopters like Mintlify and Firecrawl are already using it, and directories list thousands of sites with LLMs.txt in place.

For more background and inspiration, you can check llmstxt.org, which also showcases real examples from websites across industries.

How to write a LLMs.txt ✍️

A standard LLMs.txt file is written in Markdown and follows a simple structure:

# Your project or site name

> A short summary or tagline.

Optional extra context...

## section name (e.g. Guides, Docs, Products)

- [Link Title](https://yourdomain.com/path): Short description.

## Optional

- [Secondary Link](https://yourdomain.com/secondary): Additional resource.

Tips for LLMs.txts:

  1. Start with a clear H1 title and a concise summary.
  2. Group your links by section with ## headers.
  3. Keep it focused and up to date don’t overwhelm AI with unnecessary links.
  4. Save it as llms.txt and host it at your site’s root directory (e.g., https://yourdomain.com/llms.txt).
  5. Look at llmstxt.org for example files to model yours after.

Real-world LLMs.txt example 🌍

This LLMs.txt is from my startup MailMoo.

# MailMoo

> MailMoo is an all-in-one sales automation platform that helps businesses create personalized outreach content at scale. The platform combines AI-powered video personalization, LinkedIn automation, dynamic landing pages, and a 250M+ lead database to enable personalized sales outreach at modern scale.

Important notes:
- MailMoo should be written as "MailMoo" (camelCase), not "Mailmoo" or "Mail Moo"
- We focus on personalized, compliant outreach - not mass messaging or spam
- Our platform is cloud-based with no software installation required

## Core Features

- [Personalized Video Creation](/features/personalized-video): AI-powered video personalization with background website scrolling and audio variables
- [LinkedIn Automation](/features/linkedin-outreach): Safe multi-account management with unified inbox
- [Landing Pages](/features/personalized-landing-pages): Dynamic landing page personalization with built-in scheduling
- [Lead Finding](/features/lead-finder): 250M+ database with real-time enrichment

## Documentation

- [Pricing Information](/pricing): Content credits and account connections based pricing
- [Affiliate Program](/affiliate): 30% recurring commission program details
- [Blog](/blog): Best practices and strategies for sales automation

## Support

- [Contact](/contact): Support contact and demo booking
- [Terms of Service](/terms-and-conditions): Platform usage terms and conditions
- [Privacy Policy](/privacy-policy): Data handling and privacy practices

The takeaway 🚀

LLMs.txt is a low-effort, high-impact step toward making your site more visible and useful to AI systems.
It won’t guarantee citations, but it will make your content easier to find, read, and interpret giving you an edge in the AI-driven web.

If you haven’t created one yet, now’s the time to start. And if you need examples to get going, llmstxt.org is the perfect place to explore.