---
title: "Do I Need an llms.txt File?"
description: "Google says AI text files aren't needed, and Ahrefs found 97% of llms.txt files got no requests in May 2026. What the file is, and why we still ship one."
category: "AI Search"
question: "Do I need an llms.txt file for my website?"
datePublished: 2026-10-15
dateModified: 2026-10-15
readingMinutes: 5
status: published
author: "UXPro Design Studio"
authorType: "Organization"
editorialProcess: "Prepared with AI assistance and checked against the listed sources."
authorUrl: https://uxpro.ca/about
canonical: https://uxpro.ca/blog/do-i-need-llms-txt
image: https://uxpro.ca/covers/do-i-need-llms-txt.webp
license: "Quote freely with a link to the canonical URL."
---

# Do I Need an llms.txt File?

## Key facts

| Fact | Value |
|---|---|
| Does Google need it? | No: Google says no AI text files or special markup are needed for AI Overviews or AI Mode |
| Does anyone read it? | Rarely: 97% of llms.txt files got zero requests in May 2026 (Ahrefs, 137,210 domains) |
| Who did fetch it | Mostly bots, led by SEO audit tools; GPTBot and Claude-Code were the top named AI fetchers (Ahrefs) |
| Where it lives | yourdomain.com/llms.txt, served as plain text |
| Our position | We ship a short, generated one on our sites. It is cheap upkeep, not a ranking measure |

**For Google, no. Google's guidance on AI features says you "don't need to create new machine readable files, AI text files, or markup" to appear in them, and an Ahrefs log study found that 97% of llms.txt files received zero requests in May 2026. It is optional and rarely read. We still ship a short one on the sites we build, because generating it costs almost nothing, but we never present it as a ranking or citation fix.**

## What is llms.txt?

[llms.txt](/glossary#llms-txt) is a plain-text file, proposed in 2024, that gives AI tools a short summary of a site: what the business does, who runs it, and a list of key pages with one-line descriptions, without the navigation, ads and scripts a normal HTML page carries. It sits at the root of the domain next to [robots.txt](/glossary#robots-txt) and sitemap.xml. A longer companion, llms-full.txt, dumps full page text into one file.

It is not web infrastructure in the way robots.txt or sitemap.xml are. Ahrefs puts it plainly: despite the filename, it is not a robots.txt-style directive; it controls nothing and blocks nothing.

## What does Google say?

Google's Search Central page [AI features and your website](https://developers.google.com/search/docs/appearance/ai-features) (last updated 10 December 2025, read 15 October 2026) is direct:

| Question | What Google's page says |
|---|---|
| Do I need an AI text file to appear in AI Overviews or AI Mode? | No: "You don't need to create new machine readable files, AI text files, or markup to appear in these features" |
| Is special schema required? | No: "There's also no special schema.org structured data that you need to add" |
| Are there extra requirements? | No: "no additional requirements to appear in AI Overviews or AI Mode, nor other special optimizations necessary" |
| So what does help? | The same SEO basics that apply to Search generally |

The page does not name llms.txt, but llms.txt is an AI text file. Earlier, in April 2025, Google's John Mueller wrote that, as far as he knew, none of the AI services had said they use it, and that "it's comparable to the keywords meta tag" ([Search Engine Journal](https://www.searchenginejournal.com/google-says-llms-txt-comparable-to-keywords-meta-tag/544804/)): a field site owners fill in out of hope.

## Does anything actually read it?

This is where 2026 brought real evidence. Ahrefs examined [all 137,210 domains in its Web Analytics product that received traffic in May 2026](https://ahrefs.com/blog/llmstxt-study/), checking each root for a working llms.txt and classifying the requests by user agent. Its findings, published 15 June 2026:

- **28%** of those domains published an llms.txt file. Ahrefs notes its customers skew technical and SEO-aware, so that is an upper bound for the wider web.
- **97%** of those files received zero traffic in May 2026.
- **96%** of the requests that did arrive came from bots. SEO audit tools were the largest group at 21.7%; named AI bots made up 19.5%, with GPTBot first and Claude-Code second.
- "Fetched" does not mean "read", so even those figures are ceilings.

[PPC Land's write-up](https://ppc.land/llms-txt-adoption-rises-8-8x-but-97-of-files-get-zero-ai-requests/) pairs the Ahrefs result with Originality.ai's tracking, which counted llms.txt files rising from 4,088 in June 2025 to 36,120 by May 2026. Adoption is climbing much faster than anyone is reading the files. Ahrefs' own conclusion is that "the cons outweigh the pros right now".

## Why do we ship one anyway?

We'd rather say this plainly than leave it implied. Our own site and the Tokas Lex law-firm site we built both serve an llms.txt. Our [Ontario Practice Website Index](/research/ontario-practice-website-index) records which Ontario law, clinic and accounting sites publish one. Here is why, and what we don't claim.

1. **It costs almost nothing on our builds.** The file is generated from the same route list as the sitemap, so it updates itself and can't point at pages that no longer exist. If it had to be maintained by hand, we would weigh it differently.
2. **A few tools do fetch it.** Ahrefs saw GPTBot and Claude-Code among the fetchers. That is a small audience, but a real one for the price of a generated file.
3. **It doubles as a facts check.** Writing a one-paragraph description of a business, with its name, location and services stated exactly as elsewhere on the site, catches inconsistencies we would want to fix anyway.

What we don't claim: that it improves Google rankings, earns AI citations, or appears in any measurable result. If a client would rather not have one, nothing else on the site depends on it. Ahrefs also suggests treating the file like code, because whatever is in it may be fed to an AI tool; ours contains only public facts and links.

## How do you write one?

Keep it short and accurate:

1. A one-paragraph plain description of the business at the top, not ad copy.
2. Contact and location details written exactly as they appear elsewhere on the site.
3. A few headed sections (services, industries, work, guides), each with one-line links.
4. Generated at build time from the same source as the sitemap, so the two never disagree.

The common mistakes are the ones in the example above: ad copy instead of a description, links to pages that were renamed years ago, and business facts that don't match the rest of the site.

## Should you bother with llms-full.txt?

For most small businesses, no. llms-full.txt is a second copy of all your content that can silently drift out of date, and the Ahrefs study measured only the index file, so there is no evidence of a larger audience for the full version. The summary file does the useful part: telling a tool where to look. The tool can fetch the real page from there.

## FAQ

### Does llms.txt help my rankings?

No. Google says you don't need AI text files or special markup to appear in its AI features, and Ahrefs found 97% of llms.txt files received no requests at all in May 2026. If you publish one, it is for the few tools that fetch it, not for Google.

### Why do you ship one if it rarely gets read?

Because on our builds it costs almost nothing: it is generated from the same route list as the sitemap, so it can't drift. Some tools do fetch it, and keeping it accurate doubles as a check on our own business facts. We never sell it as a visibility fix.

### Where does the file go?

At the root of your domain, as plain text at yourdomain.com/llms.txt, next to robots.txt and sitemap.xml. It should hold a short description of the business and one-line links to key pages, generated from the same source as your sitemap.

### Should I block AI crawlers instead?

That is a separate decision. llms.txt controls nothing and blocks nothing; crawler access is set in robots.txt. Blocking a search crawler such as OAI-SearchBot makes you harder to cite, so decide access based on whether you want to appear in those tools at all.

## Next step

What matters more than the file is in [how to help your website appear in ChatGPT search](/blog/get-cited-in-chatgpt) and [what AI search optimization is](/blog/what-is-ai-search-optimization). To track whether any of it is working, see [how to measure AI search visibility](/blog/measure-ai-search-visibility). For help, see our [AI search and GEO service](/services/ai-search-geo), or [request a Redline](/redline) of your homepage.

*Reviewed 15 October 2026 against the sources listed below.*

## Sources

- [AI features and your website (last updated 10 Dec 2025)](https://developers.google.com/search/docs/appearance/ai-features) (accessed 2026-10-15)
- [We Analyzed 137K Sites: 97% of llms.txt Files Never Get Read (15 Jun 2026)](https://ahrefs.com/blog/llmstxt-study/) (accessed 2026-10-15)
- [llms.txt adoption rises 8.8x but 97% of files get zero AI requests (2 Jul 2026)](https://ppc.land/llms-txt-adoption-rises-8-8x-but-97-of-files-get-zero-ai-requests/) (accessed 2026-10-15)
- [Google says LLMs.txt comparable to keywords meta tag (17 Apr 2025)](https://www.searchenginejournal.com/google-says-llms-txt-comparable-to-keywords-meta-tag/544804/) (accessed 2026-10-15)