llms.txt
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The llms.txt file is an emerging convention used to
provide a machine-readable summary of a website's content, specifically designed
for LLMs and AI agents.
Without this file, agents may spend more time crawling the site to understand
its high-level structure and primary content.
How the llms.txt audit works
Lighthouse flags the pages if a server error occurs when attempting to retrieve
the llms.txt file. If the file is not provided by the server (resulting in a
404), the audit is marked as Not Applicable (N/A), as providing the file is
optional at the moment.
How to fix
Create an llms.txt file and place it in the root directory of your website
(for example, https://example.com/llms.txt). The file should follow the llms.txt
specification and provide a concise Markdown summary of
your site's purpose and key links.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2026-05-05 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2026-05-05 UTC."],[],[]]
