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llms.txt

llms.txt is a text file placed at the root of a website that describes, in a concise machine-readable form, which pages matter most and what they are about. It helps artificial intelligence systems orient themselves without having to interpret the whole site.

Why it matters

It is the robots.txt of the answer era: it does not say what NOT to read, it says what is worth reading. It takes minutes and removes ambiguity.

In practice

  • List the main pages with one line of description each.
  • Use plain language, not slogans: it is read by a machine.
  • Keep it updated when important pages are added.
  • Use it alongside structured data, not instead of it.

Related terms

Frequently asked questions

What is llms.txt?

llms.txt is a text file placed at the root of a website that describes, in a concise machine-readable form, which pages matter most and what they are about. It helps artificial intelligence systems orient themselves without having to interpret the whole site.

Why does llms.txt matter?

It is the robots.txt of the answer era: it does not say what NOT to read, it says what is worth reading. It takes minutes and removes ambiguity.

Find out how your brand appears in AI answers today. The analysis takes about ten minutes.