Is llms.txt an official web standard?

No, llms.txt is a proposed standard that is gaining traction in the industry but is not yet universally adopted. Similar to how robots.txt became a de facto standard before formal specification, early adopters of llms.txt are positioning themselves ahead of the curve as AI platforms begin recognizing the file.

Where should you place the llms.txt file on your website?

Place the llms.txt file at the root of your domain, accessible at yoursite.com/llms.txt. It should be in plain text or markdown format and publicly accessible so AI crawlers and retrieval systems can find and read it without authentication.

How does llms.txt help prevent AI hallucinations about your brand?

By providing verified, structured facts about your business in llms.txt, you give AI systems a reliable source to reference. This reduces the chance of AI fabricating incorrect details about your products, pricing, or company information, since the model can retrieve accurate data directly from your domain.

Technical · Definition

llms.txt

llms.txt is a proposed web standard file placed at your domain root that gives AI language models verified, structured facts about your organization to reduce hallucinations.

Full definition

llms.txt is a proposed standardized file format that websites can use to provide AI language models with structured information about their organization, products, and content. Similar to how robots.txt instructs crawlers, llms.txt informs AI systems.

Purpose:

Provide accurate company/product information
Guide AI responses about your brand
Reduce AI hallucinations about your business
Supplement training and retrieval data

Typical llms.txt Contents:

Product Details

Features and capabilities
Pricing structure
Target audience

Key Facts

Important statistics
Achievements and milestones
Partnerships and integrations

FAQs

Common questions and answers
Clarifications on misconceptions
Contact information

Example Structure:

# CompanyName

> Brief company description

## About
Official company information...

## Products
- Product 1: Description
- Product 2: Description

## FAQs
Q: Common question?
A: Clear answer.

Implementation:

Place at yoursite.com/llms.txt in plain text or markdown format. While not yet universally adopted, early implementation positions you well as the standard evolves.

Related terms

Keywords

llms.txt
LLM file
AI instructions
AI guidance file

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Related Resources

Blog

Purpose:

Provide accurate company/product information
Guide AI responses about your brand
Reduce AI hallucinations about your business
Supplement training and retrieval data

Typical llms.txt Contents:

Product Details

Features and capabilities
Pricing structure
Target audience

Key Facts

Important statistics
Achievements and milestones
Partnerships and integrations

FAQs

Common questions and answers
Clarifications on misconceptions
Contact information

Example Structure:

# CompanyName

> Brief company description

## About
Official company information...

## Products
- Product 1: Description
- Product 2: Description

## FAQs
Q: Common question?
A: Clear answer.

Implementation:

Place at yoursite.com/llms.txt in plain text or markdown format. While not yet universally adopted, early implementation positions you well as the standard evolves.

llms.txt

Purpose:

Typical llms.txt Contents:

Company Information

Product Details

Key Facts

FAQs

Example Structure:

Implementation:

Put llms.txt to work.

Related Resources

llms.txt Guide: How to Set Up Your File in 5 Steps [2026]

GEO Guide: Content Format Effects on AI Citations

Large Language Model (LLM)

AI Crawler

Reddit Citation Guide: Win Mentions with Crawler Access

Schema Markup

llms.txt

Purpose:

Typical llms.txt Contents:

Company Information

Product Details

Key Facts

FAQs

Example Structure:

Implementation:

Put llms.txt to work.

Related Resources

llms.txt Guide: How to Set Up Your File in 5 Steps [2026]

GEO Guide: Content Format Effects on AI Citations

Large Language Model (LLM)

AI Crawler

Reddit Citation Guide: Win Mentions with Crawler Access

Schema Markup