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llms.txt
llms.txt is a plain-text file at the root of a website that tells AI and LLM crawlers what the site is and points them to key content, improving AI legibility.
What it is
llms.txt is a plain-text file placed at the root of a website (for example, yourdomain.com/llms.txt) that describes the site to AI and LLM-based crawlers. It typically includes a short description of the site, its purpose, and links to the most important pages or content.
The convention is modelled loosely on robots.txt, which tells search crawlers what they may access. Where robots.txt controls access, llms.txt provides context: it helps a language model understand what your site is about before it reads the full content.
Why it helps
AI answer engines ingest enormous amounts of web content. A clear, structured llms.txt file gives crawlers an efficient entry point, reduces the chance that your most important content is missed, and signals that your site is actively maintained for AI legibility.
Status
llms.txt is an emerging convention, not a formal standard. Adoption is growing, and several major AI crawlers are beginning to respect it. It is low-effort to create and has no downside.
Rankport generates a ready-to-publish llms.txt file based on your site's content for free at /tools/llms-txt.
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