What is llms.txt, and should your business use it?
An llms.txt file is an optional way to provide a concise introduction and useful links for tools working with your website. It can be helpful when you maintain a documentation collection or want to give compatible tools a straightforward route through your content. It is not a requirement for appearing in search or AI answers.
The distinction matters because a file that takes a few minutes to create can acquire an exaggerated sales promise. Publishing it does not make an assistant recommend your company, correct every mistaken answer or treat your claims as verified facts.
A content guide, not an access control
The llms.txt proposal describes a Markdown file with background information and links to more detailed material. It can sit at the site root or cover a section. Check the current proposal when implementing it, as the format and surrounding conventions can develop.
That purpose differs from two familiar files:
| File | Main job | What it does not establish |
|---|---|---|
| robots.txt | Communicates crawler access rules | Confidentiality or a right to use content |
| sitemap.xml | Lists URLs for discovery | Guaranteed indexing or ranking |
| llms.txt | Offers a concise guide for tools that use it | Guaranteed adoption, citation or factual accuracy |
For crawler policy, read robots.txt for AI crawlers. Do not put private paths or sensitive business information in a public file and assume a request to ignore them will provide protection.
What should go into a business file?
Start with the name of the business and a short factual description. Point to the current services, pricing, contact details and genuinely useful guides. Prefer a handful of maintained links over a second copy of the whole website.
For a European business, make location and service coverage explicit. A server location, registered office and market served are three different facts. Do not turn “servers in Finland” into a claim of offices throughout Europe or automatic regulatory compliance.
Use the published canonical URLs. If your English content lives under /en/, point readers to the English pages consistently. Include a language label if the file covers more than one language. The main website remains the source of the full offer, terms and explanations.
A simple file can contain these sections: business introduction, main services, pricing and terms, support contacts, and selected guides. Keep the descriptions specific enough that a tool or person can choose the right link without guessing.
Publish and verify it
In WordPress, a developer can place the file in the appropriate public directory or use a maintained mechanism that generates it. On a static site, it belongs in the project's public asset process. Avoid editing generated output by hand if the next build will overwrite it.
After publication, open the URL directly. Check that it returns the intended text rather than a branded error page, authentication prompt or unrelated redirect. Verify every link. Make sure an automatic generator has not copied an expired campaign, a private contact or an invented service promise.
If you also publish Markdown versions of individual pages, keep them aligned with the HTML pages. The draft files used to prepare a translation are not automatically public URLs. Only advertise a Markdown endpoint after it is actually served and tested.
Keep expectations measurable
There is no basis here for treating llms.txt as an established Google ranking factor. Assess the optional file by whether it is correct, accessible and useful to the tools you actually use. Assess search discovery and business outcomes separately.
Do not prioritise this experiment above an unavailable homepage, misleading price or broken contact form. Our AI visibility checklist puts the fundamentals first, and the measurement guide shows how to record observations without implying a guarantee.
Give the file an owner
Review it whenever core services, contact details or important URLs change. Linking to an authoritative pricing page usually creates less maintenance than copying every price into several formats. If you do duplicate a fact, include it in the same content review process as the website.
ResaHost web hosting provides the technical foundation for serving public files. Agree the creation and ongoing editing of an llms.txt file as part of the relevant website work; do not assume that an optional search experiment is automatically included in every maintenance package.
Frequently asked questions
Do I need llms-full.txt?
Usually a small business can start without another duplicated content export. Decide based on a real tool requirement and how you will maintain it.
Can I write it myself?
Yes, if you can publish a plain text file safely and verify its contents. Technical simplicity does not remove the need to check the facts.