What is llms.txt, and does your business website need one?

What does llms.txt actually do?

Modern websites are heavy. Navigation menus, scripts, cookie banners, and styling get wrapped around a small core of actual content, and when an AI system reads your site, all of that wrapping wastes its limited attention. The llms.txt standard addresses this with a simple text file at your site’s root (like yourbusiness.com/llms.txt) that lists your most important pages with one-line descriptions, in a format machines parse instantly.

Think of it as the difference between handing someone your whole filing cabinet versus a one-page index of what’s inside and where. A companion file, llms-full.txt, can go further and include the full text of your key pages in one clean document, so an AI tool can ingest everything you offer in a single request.

Does Google use llms.txt?

No, and it’s worth being precise about this because a lot of advice online gets it wrong. Google has stated publicly that its search and AI features give llms.txt no special treatment. Adding one won’t help or hurt your Google rankings or your presence in Google’s AI answers. Google’s systems rely on regular crawling of your actual pages.

The file matters for the ecosystem beyond Google. AI crawlers, research tools, and assistants that fetch a site on demand can use it to navigate straight to substance. The file costs nothing to serve and takes minutes to create, so the honest framing is modest upside for almost no work.

What belongs in the file?

A good llms.txt starts with your business name as a heading, a short factual summary of what you do, and then a grouped list of links (core pages first, then guides or articles), each with a one-line description. The best versions read like an honest index rather than a sales pitch. Machines are the audience, and clarity is what serves them.

If you publish answer-style articles, each one belongs in the list with a description of the question it answers. That’s what makes the index useful to a system trying to match your content to a user’s question.

Should a local business bother?

If your website is three pages that rarely change, llms.txt is a nice-to-have you can set up in ten minutes. If you publish content regularly (answers to customer questions, guides, service explainers), it becomes genuinely useful, because it keeps a live, machine-readable index of everything citable you’ve written.

Every piece WellSaid generates ships with its own llms.txt entry ready to paste, and this site’s own llms.txt is generated automatically from every page and post, including this one. We practice the format we recommend.