Is llms.txt the same as robots.txt?

No. robots.txt controls which pages AI crawlers can access (allow/disallow). llms.txt provides brand context for LLMs to use when describing you. Both files serve different purposes and should both be maintained.

Will adding llms.txt immediately improve my citation rate?

Not immediately — AI platforms need to re-crawl and re-index your domain. But it reduces the risk of AI generating inaccurate brand descriptions and provides a clean source for platforms that do explicitly parse it. It is a foundational step, not a shortcut.

Where should I put llms.txt?

At the root of your domain: yourdomain.com/llms.txt. Some brands also publish llms-full.txt for more detailed information and reference it from llms.txt.

Content Signals

llms.txt

Definition

A plain-text file at the root of a website that provides AI systems with a structured summary of the brand, products, and preferred citations — analogous to robots.txt but for LLMs.

The llms.txt standard was proposed in 2024 as AI crawlers became a meaningful traffic source. It follows the convention established by robots.txt but serves a different purpose: instead of controlling what bots can access, it tells them what to say about you.

Recommended Structure

# Brand Name

## About
[2–3 sentences describing what the brand does, who it serves, and its key differentiators]

## Products
- [Product 1 name]: [one-line description]
- [Product 2 name]: [one-line description]

## Key Facts
- Founded: [year]
- Headquarters: [city, country]
- Key differentiators: [2–3 bullet points]

## Preferred Citations
[How you'd like to be described in AI answers — the framing you want used]

## Contact
[Public contact page URL]

Does It Work?

llms.txt is not a universally implemented standard — not all AI platforms explicitly parse it. However, it is crawlable and indexable, meaning the content can be retrieved and used in RAG-based answers. Because the file is crawlable and indexable, its content can be retrieved and used in RAG-based answers by systems that fetch it. Treat it as a clean, controlled brand summary — not a ranking lever.

At minimum, it costs nothing and takes less than an hour to implement.

What Google says (May 2026)

Google's May 2026 documentation states that llms.txt is not used by Google Search's generative AI features — Google may crawl the file but gives it no special treatment. One week later, Google added an llms.txt presence check to Chrome Lighthouse's new Agentic Browsing audits, noting that without it, AI agents may spend more time crawling a site to understand its structure. Practical takeaway: llms.txt does not influence Google Search or AI Overviews, but remains a low-cost asset for third-party AI crawlers and the emerging agent ecosystem.

Frequently Asked Questions

Is llms.txt the same as robots.txt?: No. robots.txt controls which pages AI crawlers can access (allow/disallow). llms.txt provides brand context for LLMs to use when describing you. Both files serve different purposes and should both be maintained.
Will adding llms.txt immediately improve my citation rate?: Not immediately — AI platforms need to re-crawl and re-index your domain. But it reduces the risk of AI generating inaccurate brand descriptions and provides a clean source for platforms that do explicitly parse it. It is a foundational step, not a shortcut.
Where should I put llms.txt?: At the root of your domain: yourdomain.com/llms.txt. Some brands also publish llms-full.txt for more detailed information and reference it from llms.txt.

Want to know how your brand appears in AI answers?

Run an AnswerAtlas AI Visibility Audit and see how AI assistants like ChatGPT, Gemini, and Claude describe, cite, and recommend your brand — and whether competitors appear instead.

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