What is llms.txt? Definition and examples

llms.txt is a plain-text file at a site's root that points AI systems to the site's most useful pages, in Markdown.

Example

posta.ai/llms.txt lists the pillar pages, feature pages, documentation, and prompt library with one-line descriptions.

Why does llms.txt matter for e-commerce?

It's an emerging convention for GEO: a small, low-cost way to help AI crawlers find the pages you want them to read.

How does Posta use llms.txt?

Posta's agents use llms.txt when reviewing your accounts and recommending changes. See the generative engine optimization page for how it fits into your workflow.