llms.txt is a concise guide to a website for AI agents. It describes the project and links to materials that provide more detail.
The file is written in Markdown, a plain-text format with simple conventions for headings, lists, and links. Both people and software can read it.
An open proposal for the format is published at llmstxt.org. It is not a requirement for every website. The current proposal focuses on a concise description and links to machine-readable materials, such as Markdown versions of web pages.
For a business, this kind of file can help an AI tool find information about services, documentation, terms of cooperation, and frequently asked questions.
llms-full.txt usually brings together the detailed content of materials in one text document. This approach is also used by documentation platforms such as Mintlify.
The choice depends on how much context you need to provide to a tool.
In brief, llms.txt is a concise project description with links to important materials. It helps a tool find relevant pages and may be enough when links are all it needs. llms-full.txt is a more extensive reference containing detailed materials in one file. It may be useful when you want to provide more context at once.
For larger websites, include only relevant, up-to-date materials: a full copy of every page may be too large. You do not have to create both files. The changes to the llmstxt.org proposal describe a move toward an approach in which an agent finds relevant links and reads materials when needed.
If a website has hundreds of pages, start by defining the use case. A complete copy of all the text may be too large for the selected tool, especially when the website contains many similar pages or repeated descriptions.
These files have practical value when an AI tool actually uses them.
For example, you could give a file to an assistant so it can review your public terms, answer questions about products, or compare service descriptions. The tool must support opening web links or loading the file.
The iuntsevich.cz directory groups services by area. Each service should clearly describe its scope, support, and terms so readers can verify the information on the relevant page.
Preparing a file is also an opportunity to review the information on your website. If different sections list different timelines or outdated services, resolve those inconsistencies before creating another version of the content.
The format proposal includes a project name, a concise description, explanatory notes, and topical link lists. The only required part in the described structure is a level-one heading with the project name. The other sections help make the file useful and informative.
For a business website, we recommend including:
Rather than use a fictional company as an example, we are linking to the real iuntsevich.cz llms.txt file:
If you need an extended file for a specific use case, organize it as a structured reference.
For each resource, include its title, original URL, and main content. Separate sections with headings, and remove repeated menus, banners, and technical fragments.
In the full iuntsevich.cz directory, service information includes a description and a link to the relevant service page. Each service section contains a concise description, current terms, and a link to the original source page. This illustrates one way to structure llms-full.txt using real information from the agency.
The file structure depends on its purpose. Include only sections that help readers understand the company and its materials. Carefully check prices, timelines, limitations, and the scope of each service. A review date helps you track freshness. If information changes frequently, decide in advance who will update the file or how it will be generated automatically.
The method depends on the platform and your access to the hosting environment.
Tilda. Built-in file management is available under Site Settings → SEO → Additional. Prepare the file contents and use the relevant setting. Follow the interface instructions for saving and applying changes. Tilda describes this feature in its official announcement.
WordPress. You can use a plugin that supports llms.txt. For example, Yoast SEO lets you enable the feature under Settings → Site features → AI tools → llms.txt and choose which pages to include. Check llms-full.txt support separately: a generator for one file does not necessarily create both. See the Yoast instructions.
HTML or a custom-built website. A developer can place the text files in a public website directory or configure them to be generated automatically. If they are placed in the domain root, their addresses will look like https://example.com/llms.txt and https://example.com/llms-full.txt. The exact directory depends on the project and hosting setup.
Other CMS platforms and website builders. Check for built-in settings and available extensions. If publishing the files requires technical changes to an existing website, you can request hourly website support, with an estimate of the task, time, and cost agreed in advance.
We recommend a quick check:
After that, you can give the link to an AI tool that can access web pages and ask it a few questions about the contents. Check its answers against the sources. This shows how easy the materials are to use; it does not measure the company's visibility in search.
Publishing these files does not guarantee brand mentions, links to your website, or new inquiries.
Google Search does not use llms.txt. This file does not help or harm a website's visibility in Google Search, including AI Overviews and AI Mode, according to Google's official guidance.
For other services, consider how each one works. The fact that a service can read a file when a user asks does not mean it automatically finds the file on every website or uses it to recommend companies.
Evaluate the files against a specific use case, while continuing to improve the website and its content as part of your search visibility work.
It is useful to explore the format this year if you use AI for content work or want to prepare a clear reference about your company. You can start with a small set of verified materials and a practical test.
We recommend this order: first review the source information, then prepare the file, test how it is used, and plan how it will be updated.
There is no basis for claiming that it will be too late in a year. At the same time, there is no need to wait for a wave of hype before learning about the tool. A small, focused experiment can help you decide whether it is useful for your business.
If you need help preparing a file, publishing it on an existing website, or making technical changes, the iuntsevich team can review the task with you. For focused changes, we offer hourly website support and design.
Contact us to discuss the right way to proceed.