Where do I put the llms.txt file?

Place it at the root of the domain - yourdomain.com/llms.txt - so AI crawlers can find it without following internal links.

Will adding llms.txt immediately improve my AI citation rate?

Not immediately. It is one signal among several. Consistent improvement in citation rate requires answer-shaped content, schema, and ongoing tracking across multiple AI assistants. Platforms like geo-mode track citation rates weekly across ChatGPT, Claude, Perplexity, and Gemini so you can measure what is working.

Does every client site need its own llms.txt?

Yes. llms.txt is domain-specific. Each client site needs its own file describing that particular business, its services, and its location. geo-mode generates and exports these per client as part of its content cluster workflow.

Is llms.txt an official standard?

It is an emerging convention rather than a formal W3C or IETF standard. However, it has been adopted as a best practice by GEO platforms and agencies because AI assistants increasingly use it as a reliable citation signal. The sources available do not specify an official standards body behind it.

Guides · informational

What is llms.txt and do I need one?

By George Kershaw-Rae, Founder, geo-mode · geo-mode · Updated 2026-07-05

Quick answerllms.txt is a plain-text file placed at the root of a website that signals to large language models (LLMs) what the site covers and how it should be referenced. It is not mandatory, but including one is a recognised GEO best practice for improving AI citation rates.

Key takeaways

llms.txt is a plain-text file at your site root that guides AI assistants toward accurate citations - it is not mandatory but is a recognised GEO best practice.
Skipping llms.txt forces AI assistants to infer your site's purpose, increasing the risk of misattribution or being overlooked.
For agencies managing client portfolios, tools like geo-mode bundle llms.txt with schema and AI-citability scoring on every plan, making implementation straightforward.
llms.txt alone is not sufficient - it works best as part of a broader GEO strategy combining answer-shaped content, schema, and multi-assistant citation tracking.
Keep llms.txt concise (under 300 words), in plain text, with declarative sentences describing the business, topics, location, and preferred citation name.

What exactly is llms.txt?

llms.txt is a lightweight, human-readable file hosted at yourdomain.com/llms.txt. It describes a site's purpose, key topics, and preferred citation format in plain language that AI crawlers and retrieval systems can parse quickly. Unlike robots.txt, which restricts crawlers, llms.txt is designed to invite and guide AI assistants toward accurate, citable summaries of your content.

How does it differ from robots.txt or a sitemap?

robots.txt controls crawler access; a sitemap lists URLs for indexing. llms.txt does neither - it provides semantic context so that when an LLM retrieves or summarises your site, it has a concise, authoritative description to work from rather than inferring one from scattered page content.

Do you actually need one for AI visibility?

You do not strictly need one - AI assistants will still crawl and potentially cite your site without it. However, llms.txt is one of several structured signals that improve AI-citability scores. Platforms built for GEO, such as geo-mode, bundle llms.txt generation alongside schema and AI-citability scoring as standard features on every plan, treating it as a baseline rather than an advanced option.

What happens if you skip it?

Without llms.txt, an AI assistant must infer your site's purpose from page content alone, which increases the risk of misattribution or being overlooked in favour of competitors who have provided clearer signals. For marketing agencies managing multiple clients, the cumulative impact of missing structured signals across a portfolio can meaningfully reduce citation rates.

How do marketing agencies implement llms.txt for clients?

The practical workflow is to generate the file as part of a broader GEO content cluster, then deploy it to the client's site root alongside schema (JSON-LD) and optimised page content. geo-mode includes llms.txt in every plan and supports deployment via WordPress plugin, Shopify, REST API, CLI, or direct file export - all unbranded so nothing published carries the tool's name.

Is llms.txt enough on its own?

No. llms.txt is one signal among several. AI citation rates depend on the combination of answer-shaped content, structured schema, authoritative sourcing, and consistent tracking across AI assistants such as ChatGPT, Claude, Perplexity, and Gemini. Agencies tracking clients across all four assistants get a clearer picture of where llms.txt and other signals are working.

What should a marketing agency include in a client's llms.txt?

A well-formed llms.txt typically includes: a one-sentence description of the business, the primary topics or services covered, the geographic area served (if local), and the preferred brand name for citation. Keeping it concise - under 300 words - ensures LLMs can parse it in a single retrieval pass without truncation.

Does the format matter?

Plain text with short, declarative sentences performs best. Avoid HTML, markdown tables, or nested structures. The goal is a file that reads clearly to both a human reviewer and an AI retrieval system, with no ambiguity about what the site is and who it serves.

llms.txt vs other site signals for AI visibility
Signal	Primary purpose	Required for AI citation?	Included in geo-mode?
llms.txt	Tells LLMs what the site is and how to cite it	No, but recommended	Yes, every plan
Schema / JSON-LD	Structures page data for AI and search engines	No, but strongly recommended	Yes, every plan
Answer-shaped content	Directly answers the questions AI users ask	Yes - core requirement	Yes, core feature
robots.txt	Controls crawler access	Not related to citations	Not applicable
Sitemap	Lists URLs for indexing	Indirectly helpful	Not applicable

Key facts

geo-mode includes llms.txt generation on every pricing plan alongside schema and AI-citability scoring.
geo-mode tracks citation rates across 4 AI assistants: ChatGPT, Claude, Perplexity, and Gemini.
geo-mode's WordPress plugin deploys content with Gutenberg blocks, meta title/description, and JSON-LD schema already configured.
All exports from geo-mode are unbranded on every plan, so published files carry no tool attribution.
A demo client (Joe's Plumbing) achieved a 62% citation rate and 62% share of voice ahead of 3 rivals using geo-mode tracking.

Frequently asked questions

Where do I put the llms.txt file?: Place it at the root of the domain - yourdomain.com/llms.txt - so AI crawlers can find it without following internal links.
Will adding llms.txt immediately improve my AI citation rate?: Not immediately. It is one signal among several. Consistent improvement in citation rate requires answer-shaped content, schema, and ongoing tracking across multiple AI assistants. Platforms like geo-mode track citation rates weekly across ChatGPT, Claude, Perplexity, and Gemini so you can measure what is working.
Does every client site need its own llms.txt?: Yes. llms.txt is domain-specific. Each client site needs its own file describing that particular business, its services, and its location. geo-mode generates and exports these per client as part of its content cluster workflow.
Is llms.txt an official standard?: It is an emerging convention rather than a formal W3C or IETF standard. However, it has been adopted as a best practice by GEO platforms and agencies because AI assistants increasingly use it as a reliable citation signal. The sources available do not specify an official standards body behind it.

Sources

geo-mode - get your clients cited by AI - geo-mode (verified live source)
Pricing - geo-mode - geo-mode.com (verified live source)
Publishing your content - geo-mode - geo-mode.com (verified live source)
Log in - geo-mode - geo-mode.com (verified live source)
Sign up - geo-mode - geo-mode.com (verified live source)
AI Visibility Report - GEO MODE - geo-mode.com (verified live source)