Lighthouse llms.txt audit

In short

A Chrome Lighthouse check in the Agentic Browsing category that flags a server error on /llms.txt and marks a 404 as not applicable. Example: Lighthouse treats a missing llms.txt as N/A because the file is optional. Related terms: Linked arrival, JSON-LD.

Source of the example

The example in the summary above is from developer.chrome.com, read 4 November 2026.

Where it shows up on this site

Method

Neighbouring terms

Linked arrival: A fetch of a machine file that followed a link rather than a guessed path.
JSON-LD: Structured data written as JSON in a script tag of type application/ld+json, using schema.org types.

Sources

developer.chrome.com https://developer.chrome.com/docs/lighthouse/agentic-browsing/llms-txt, read 4 November 2026

Last reviewed 4 November 2026