Definition
llms.txt
llms.txt is a proposed plain-text file placed at the root of a website, at /llms.txt, that gives large language models a curated Markdown summary of the site plus links to its most important pages. It is a voluntary, machine-readable hint, not an official standard, and adoption so far is limited.
What llms.txt contains and how it works
An llms.txt file is written in Markdown and lives at your domain root, for example https://example.com/llms.txt. It usually opens with an H1 of the site or brand name, a short blockquote summarising what the site is, and then sections of curated links with brief descriptions. The idea, proposed in 2024, is to hand a language model a clean, condensed map of your content instead of making it crawl and parse full HTML pages. Some projects also publish an llms-full.txt with the actual text inlined. The format is readable by both people and machines, and it is cheap to create and maintain.
What llms.txt does not do (be realistic)
Treat llms.txt as a forward-looking signal, not a citation lever. As of 2026 it has limited real-world adoption, and Google has publicly said it does not use llms.txt for its AI features. There is no confirmation that ChatGPT, Perplexity, or Claude read it during live answers either. Publishing the file does not guarantee that an engine will cite you, rank you higher, or even fetch it. It also does not replace the basics that engines clearly do use: crawlable HTML, clear structure, accurate metadata, and a sitemap. Think of it as a low-risk bet that costs little if it is ignored.
Should a wellness brand publish one?
For most clinics, studios, and supplement or wellness brands, publishing llms.txt is a reasonable, low-effort experiment. It signals that you are thinking about how AI engines read your site, it is easy to keep current, and it carries almost no downside if engines never consume it. Keep it honest: link to your real, public, accurate pages and avoid stuffing it with marketing claims. Just do not let it crowd out the work that matters more, namely strong, well-structured content and sound technical SEO. Laudia tracks signals like llms.txt as part of a broader picture of how visible your brand is across AI search.