In the era of AI and machine learning, structured data has become critical for making your website content discoverable and usable by large language models (LLMs) like ChatGPT. One way to prepare your website’s content for AI is through an LLMS.txt file. But what exactly is it, and why should your business have one?

What is an LLMS.txt File?


An LLMS.txt file is a simple, human-readable text representation of your website’s structured data. Unlike traditional structured data embedded in JSON-LD or microdata, the LLMS.txt file is designed specifically for large language models. It consolidates your website’s key information, such as:

  • Company details (name, legal name, description, contact info)
  • Social profiles and online presence links
  • Awards and recognitions
  • Address and geographical coordinates
  • Opening hours
  • Employees and their roles
  • Reviews and customer testimonials
  • Frequently Asked Questions (FAQs)
  • Extra attributes like products, services, or industry-specific info

This text-based format ensures that AI systems can quickly parse and understand your business without having to crawl multiple pages.

Why Do You Need an LLMS.txt File?


AI-Ready Content


LLMs work best when content is structured and easy to interpret. By providing a clean LLMS.txt file, you give AI tools a clear source of truth about your business.

Faster Data Discovery


Instead of having AI models parse your entire website, an LLMS.txt file gives them a consolidated snapshot of your business, reducing errors and inconsistencies.

Improved Accuracy


By including verified data like FAQs, opening hours, and employee information, you increase the chances that AI-generated responses about your company are correct.

SEO and Knowledge Base Benefits


Structured data benefits search engines as well. An LLMS.txt file complements other SEO efforts by providing a format that’s optimized for AI and indexing.

How to Generate an LLMS.txt File


Creating an LLMS.txt file manually is a case of writing out the key sections about your site, with ## infront of each section heading. Here are 2 sections from ours:

## Profile Information
– [Profile](https://www.aiprofiles.co.uk/profile/18a-productions-limited): Canonical business profile
– [Schema](https://www.aiprofiles.co.uk/profile/18a-productions-limited/schema.jsonld): JSON-LD schema
– Updated: 2025-09-17T13:50:36+00:00
– Legal Name: 18a Productions Limited
– [Website](https://www.18aproductions.co.uk/)
– Email: support@18aproductions.co.uk
– Phone: 01179 680989

## Social & Online Presence
– [Instagram](https://www.instagram.com/18aproductions/)
– [Twitter](https://twitter.com/18aproductions)

You then need to save it as a llms.txt file and place it on your server. If you’re not a developer, services like AIProfiles can automatically generate LLMS.txt files for your business. By analyzing your website, AIProfiles creates a comprehensive, well-formatted LLMS.txt file that’s ready to feed into AI systems.

Best Practices

  • Update Regularly: Make sure the LLMS.txt file reflects your latest content and business information.
  • Normalize Text: Remove unnecessary line breaks, extra spaces, or special characters to ensure AI can parse the content correctly.
  • Include All Key Sections: From company info to FAQs, make your LLMS.txt file as complete as possible.

With an LLMS.txt file, you can make your business content fully AI-ready, improve accuracy in AI-generated responses, and provide a foundation for smarter AI integration.