How to implement LLMs.txt for a Portuguese-language website

What does LLMs.txt do for a Portuguese website?

LLMs.txt is a plain-text Markdown document intended to point language models toward useful information on a website. It can give a compact overview of the site and link to selected pages; it does not replace those pages or make their contents authoritative by itself.

For a Portuguese-language website, the file is most useful when it reflects the actual structure and language of the content. A short summary in Portuguese can help a reader or compatible system understand what the site covers and where to find primary material. Keep product names, technical terms and page titles consistent with how they appear on the site.

Do not confuse the file with a sitemap or robots.txt:

• A sitemap is designed to list URLs for discovery and crawling.
• Robots.txt communicates crawler access preferences.
• LLMs.txt is a curated, readable guide to selected content.

The format is a proposal, not a universal requirement. A clear, useful website remains the foundation. For a broader explanation of the idea and its trade-offs, see our LLMs.txt overview.

Which pages should go into LLMs.txt?

Include pages that explain your organization, products or expertise clearly and are worth consulting as primary sources. The file should help someone navigate your site, not reproduce it or list every URL.

Start by identifying the questions a visitor needs answered. For a Web3 project, those may include what the product does, how it works, who it serves, where to find documentation and how to contact the team. Then select the stable pages that answer those questions directly.

Use this checklist before adding a link:

• Is the page public and accessible without an account?
• Does it contain original, current information rather than a brief announcement?
• Is its purpose clear from its title and opening section?
• Does the URL resolve to the preferred version, without a temporary redirect?
• Is the page available in the language named in the description?

A concise selection is easier to maintain than an exhaustive directory. Include a link to a Portuguese page when it is the clearest source for a Portuguese reader. If the site also has English material, label the language plainly rather than presenting translated and original versions as interchangeable. For help with wider search foundations, see the crypto SEO guide.

How do you create an LLMs.txt file in Portuguese?

Create a UTF-8 plain-text file named llms.txt and use Markdown headings, short explanatory text and links to selected pages. Write for a human who needs to understand the site quickly: make each description specific, factual and easy to verify against the linked page.

A simple starting point might look like this:

### Nome do projeto

Uma descrição breve, em português, do que o projeto oferece e para quem.

### Produto e documentação
- Visão geral do produto — `/pt/produto`: explica as funções principais.
- Documentação — `/pt/docs`: reúne instruções e referências técnicas.

### Sobre a equipe
- Sobre o projeto — `/pt/sobre`: apresenta a equipe e o propósito.

Replace the example paths and text with real URLs and claims you can substantiate. Prefer clear titles over generic labels such as “more information.” Avoid promotional superlatives, unsupported claims, duplicate links and descriptions that promise details the destination does not contain.

Keep the structure modest. If a section has no useful source page, leave it out. Before publishing, ask the page owner to confirm that each description is accurate and that the linked page is intended for public reference. The goal is a reliable index, not a second copy of your website.

Where should you publish the file, and how can you verify it?

Publish the file at the root of the domain you want it associated with, then confirm the exact URL works in a browser without a login. For example, a site on https://example.com would normally serve the file at https://example.com/llms.txt.

A practical publishing check:

1. Add the file through the website repository, CMS or hosting workflow used by your team.
2. Confirm that the deployed filename is exactly llms.txt, including lowercase letters.
3. Open the root URL in a private browser window and verify that the text is readable.
4. Follow each listed link and check that it leads to the intended public page.
5. Recheck the file after a redesign, URL migration or major content change.

If the site uses language folders, decide whether the root file should describe the whole site or direct readers to the most useful language-specific pages. Keep the chosen approach consistent with your navigation and canonical URLs. A file published only in a development environment or behind authentication cannot serve as a public reference.

When a site needs technical updates beyond a text file, coordinate the work with the people responsible for templates, routing and deployment. Our website and landing development page outlines related implementation support.

How do you check whether the file is useful?

Check LLMs.txt for accuracy, accessibility and maintainability rather than judging it by whether a particular AI answer changes. A useful file points to pages that are clear on their own and gives readers a dependable route to the source.

Review it with three questions. First, can someone tell what the website is about from the opening lines? Second, does every description match its destination and current language version? Third, can the team update the file when those pages change? If any answer is no, revise the summary or remove the link.

Keep a simple record alongside your publishing process: who reviewed the descriptions, which pages were included and when the file was last checked. This makes future maintenance straightforward, especially when page owners change or a site adds new language versions. You can also inspect the file manually after deployment rather than relying only on a successful build.

Treat LLMs.txt as one part of a broader technical AEO setup. It cannot fix pages that are inaccessible, unclear or out of date. For a view of related technical elements, see technical AEO: schema, LLMs.txt and crawlers.

What can LLMs.txt change—and what should you do next?

LLMs.txt can make selected sources easier to find and interpret when a person or system chooses to consult the file. It is a supporting reference, so the core work is still publishing clear pages with accurate information, useful headings and accessible URLs.

There is no universal requirement for AI services to fetch or use LLMs.txt, and publishing it does not determine whether a page appears in an answer or search result. Each platform controls its own crawling, selection and citation behavior; the file cannot override those choices.

If you are preparing the file, send AIPromote your root domain, the languages your site serves and a shortlist of pages you consider authoritative. We can review whether those sources are easy to identify and how the file fits into your wider AI-search presence. Our AI Presence Scan gives the review a concrete starting point; from there, we can recommend the next technical or content actions for your site. You can contact the team with those materials.