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SEO & AEO

llms.txt

llms.txt is a proposed text format intended to point language models to selected website content and guidance.

llms.txt is a proposed text format intended to point language models to selected website content and guidance. Sustainable visibility depends on clear information architecture, useful content, and accessible technology; no single measure guarantees rankings. The concept is closely related to AEO and robots.txt.

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AEO

robots.txt

AI Crawler

Structured Data

FAQ

llms.txt

Is the effort for an llms.txt file worthwhile?
The effort is small, the benefit uncertain. The file can make sense for extensive documentation that is meant to be prepared for machine reading. Clear page structure, structured data, and accessible content matter more than the format. Maintenance responsibility should be settled up front.
What belongs in an llms.txt file?
A typical file is Markdown in the site root with a title, a short summary, and annotated links to the key pages. It gives language models an overview without parsing all the HTML. The scope stays deliberately small. Outdated references do more harm than good.
How does llms.txt differ from robots.txt?
The robots.txt file controls which areas crawlers may fetch and is honored by many of them. The llms.txt file blocks nothing; it points to selected content in readable form. It does not replace access rules. Anyone who wants to keep AI crawlers out needs robots.txt or server-side measures.
Is llms.txt a recognized standard?
No, llms.txt is a community proposal, not an adopted standard. Not all language model providers read the file, and a benefit for visibility is not proven. Anyone using it should treat it as a low-effort experiment rather than a substitute for good content.