Who runs it
A proposal by Jeremy Howard (Answer.AI), first published in September 2024. Not a formal standard.
llms.txt
A Markdown file at /llms.txt that summarizes a site for language models and links to its key pages.
llms.txt
At a glance
Where it stands
Version 2 of the proposal (last updated August 2026). Google says its Search ignores llms.txt files: creating one will neither help nor harm.
Source: llmstxt.org ↗ ·
Source: Google Search Central ↗ ·
In Türkiye
A site-level file with no country restrictions.
Source: llmstxt.org ↗ ·
Checked
What our free test checks
Our free test: Checked
Checks whether /llms.txt exists and how it is built: one H1 title, a “>” summary, “##” sections and annotated links; up to three of its links are tried. Neither line affects the score.
Requests (GET only)
/llms.txt
Shown in the result as
- llms.txt
- llms.txt structure
Our rules
How the test treats protocols
- None of these affects the score. Adoption is still very low, so a missing file is information, not a fault.
- Only GET requests to the store’s own domain, small and short. We never call an endpoint, open a session, send a POST or place an order.
- A file counts only if it is a valid JSON object of the expected shape; a soft 404 page doesn’t count.
- Every request is listed on our crawler page, and you can ask to have your site excluded.
Agent protocol map
Keep reading
Related reading
How to prepare your product catalog for shopping agents →
Other protocols
Does your store publish llms.txt?
The free test reads the files and signals on this page from your store, with GET requests only.