Glossary entry · reviewed 2026-07-05

llms.txt

Name: Higglo
Price range: $$$

A proposed plain-text standard, served at a site's root, that gives AI systems a curated, machine-readable map of a site's most important pages and content in Markdown.

Also known as: llms.txt file · llms-full.txt · AI sitemap

Definition

In more depth.

llms.txt is a file placed at the root of a domain (for example, /llms.txt) that offers large language models a clean, curated index of a site: a short description of the organization followed by links to the pages that best represent it. It is analogous to robots.txt or sitemap.xml, but aimed at AI consumption rather than crawling permissions or URL discovery.

The goal is to reduce the work an AI system does to understand a site and to steer it toward the content the owner wants cited. A companion /llms-full.txt can inline expanded content for models that accept it. Adoption is voluntary and evolving, but for organizations that want to be accurately represented in AI answers, publishing one is a low-cost, high-signal move.

Frequently asked

llms.txt — FAQ.

Is llms.txt an official standard?

It is a community proposal, not an enforced standard, and no engine is required to honor it. But it is inexpensive to publish and signals clearly which pages you want AI systems to treat as canonical.

How is llms.txt different from robots.txt or a sitemap?

robots.txt governs crawler access and a sitemap lists URLs for indexing. llms.txt is a curated, human-readable summary and reading list aimed at AI systems that are trying to understand and represent your site.

Sources

Where these claims come from.

The /llms.txt proposal· accessed 2026-07-05
Higglo · llms.txt· accessed 2026-07-05

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