Llms.txt: What it is and how it can help your business

More and more users are accessing information, comparing products or making decisions through artificial intelligence assistants.
This is where the llms.txt file comes into play: A simple resource that allows you to clearly indicate what content should be considered as your company's main source.
It helps language models identify and prioritize relevant information, thus improving your presence in AI environments.
In this article, we'll see what llms.txt is, how it's structured and how you can use it to make your content better represented and more easily located by artificial intelligence assistants.
All about the new llms.txt file
Why start here
Before talking about benefits, it is important to understand well what they are about.
It is common for teams to confuse signals designed for traditional search engines with those used by artificial intelligence assistants.
llms.txt It doesn't compete with SEO: complements it.
While SEO guides search engines on how to index your website, llms.txt is designed to make it easier to understand language models when it comes to interpret and generate answers based on your content.
What is
llms.txt is a text (or Markdown) file that is placed at the root of your domain. Its function is to clearly summarize:
- Who you are.
- What content best represents your company (guides, frequently asked questions, technical documentation, policies, etc.).
- In what order or priority they should be consulted.
It's not about controlling tracking, but about guide language models to the right sources when they generate answers.
What problem does it solve
On websites with a lot of information, complex structures, or duplicate content, language models can lose focus. Between extensive menus, old versions and scripts, they do not always identify which information is valid, current or priority.
llms.txt reduces that noise. It explicitly states which contents should be considered canonical and What references should be cited for example in ChatGPT, thus improving the accuracy of the responses generated and the representation of your company in the environments where AI operates.
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How it works in practice
Why “How” Matters
You don't need technical knowledge to take advantage of llms.txt. The key is in select the content well, organize it clearly and provide the right context.
What language models value most is just that: structure and clarity.
General operation
The llms.txt file is located at the root of the domain (https://tusitio.com/llms.txt).
It is readable by both humans and language models, and its objective is to make it easier to understand your most relevant content.
It is structured by thematic blocks, which may include, for example:
- Guides: educational or explanatory content.
- FAQs: answers to common questions.
- Reference: technical documentation, APIs, manuals.
- Policies: legal texts, conditions, notices.
- Languages/Versions: versions by region or language, indicating which one is the main one.
Each block can include a brief description that indicates Who is it intended for that content and In what context should it be used.
This helps LLMs to better understand the intent and target audience of each resource.
Business Benefits
What artificial intelligence says about your company isn't neutral: it can condition purchase decisions, generate doubts in support or affect brand perception.
Having control over the sources that consult language models isn't just a technical issue; it's a strategic decision with direct impact on sales, operational efficiency and reputation.
Key Impacts
- More accurate answers: AI assistants more easily access the right version of your content, which reduces errors, confusions and generic answers about your offer.
- More correct quotes: By indicating your canonical sources, you increase the likelihood that models will link directly to your pages instead of to third parties or outdated versions.
- Internal Alignment: The file also works as a common reference for product, support, marketing or legal teams, helping to quickly identify What document is the current one.
- Reinforcing trust in your brand: When AI refers to your own resources as a source, improve your perceived authority and reinforce your position compared to other alternatives.
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How it relates to sitemap.xml and robots.txt
llms.txt does not replace classic files such as sitemap.xml or robots.txt.
Each one performs a different function in the SEO, and using them together makes it possible to better cover the different points of interaction with search engines and language models.
Relationship with sitemap.xml
- sitemap.xml provides a complete view of your site's page inventory. It helps search engines discover and crawl URLs efficiently.
- llms.txt, on the other hand, is not looking for breadth, but rather focus: he points out What is the most relevant and reliable content, and in what order they should be consulted.
In short: the sitemap provides coverage; llms.txt provides context and canonicity.
Relationship with robots.txt
- robots.txt states which parts of the site can or cannot be crawled by certain bots. It's an access control file.
- llms.txt doesn't block or limit tracing. Its function is simply Guideline: serves to guide language models to the most useful official resources.
Combining them allows maintain control over what is indexed, what is tracked and what is interpreted as the primary source.
Common Mistakes (and How to Avoid Them)
A poorly designed llms.txt loses power: it disperses attendees, causes incoherent citations and wastes opportunities to direct AI to your key pages. This is why we recommend that you avoid:
1) Turn it into a “dump” of the entire site
- Why it's a problem: dilutes the signal; the AI doesn't know what to prioritize.
- How to avoid it: It cures only what is canonical and current. Limit the file to essential blocks (Guides, FAQs, Reference, Policies) and check that each link provides clear value.
2) Desalinate it with the web
- Why it's a problem: If llms.txt prioritizes some pages and the navigation/promotion of the site others, you generate inconsistent responses and citations.
- How to avoid it: align llms.txt with your information architecture and your CTAs. If you change priorities on the web, Update llms.txt in parallel.
3) Link fragile content
- Why it's a problem: Unstable URLs, pages with pop-ups, or pages dependent on heavy JS break the experience and encourage bad citations.
- How to avoid it: aims for stable URLs and lightweight pages (clear, frictionless content). Version when necessary and avoid routes that change frequently.

CMS for the new form of search
As artificial intelligence assistants gain prominence as search and recommendation channels, it is It is important that your CMS Allow publish a file llms.txt accessible from the root of your domain.
This makes it easier for language models to find your official sources and use them as a reliable reference. Here are some that already have this functionality available.
Webflow
Webflow allows you to add the llms.txt file from the project configuration, without the need for custom developments.
Just make sure that the file is publicly accessible from yourdomain.com/llms.txt, without redirections or blocks.
WordPress
In WordPress, you can easily manage llms.txt using plugins, without directly touching the server files.
We are convinced that many more CMS will soon be added to support llms.txt.
A small file with strategic value
The true value of llms.txt is not in its format or in its technical implementation, but in How do you select, structure and describe information.
It's about choose well what to show and help understand why it matters.
Not all sites require the same editorial investment, but the trend is clear: artificial intelligence already works as a channel for search, recommendation and authority.
Preparing for this environment is not optional in the medium term.
How Novicell Can Help You
Contact with us and our team will help you evaluate the Technical SEO of your website and to implement a llms.txt file aligned with your business objectives.
Cómo podemos ayudarte
Consulta los servicios con los que te ayudaremos a conseguir tus objetivos digitales.