rel="describedby"

In short

A link relation that points from a page to the llms.txt file covering it. Added in llms.txt v2. Example: The v2 changes page names rel="describedby" for the covering llms.txt. Related terms: Rendered HTML, rel="alternate" type="text/markdown". Rendered HTML: The DOM after a browser has run the page scripts. A human and a JavaScript-running agent see it; a plain-fetch client does not.

Source of the example

The example in the summary above is from llmstxt.org, read 4 November 2026.

Where it shows up on this site

Method

Neighbouring terms

Rendered HTML: The DOM after a browser has run the page scripts.
rel="alternate" type="text/markdown": A link relation in HTML or an HTTP Link header that points from a page to its markdown version.

Sources

llmstxt.org https://llmstxt.org/changes.html, read 4 November 2026

Last reviewed 4 November 2026