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  3. llms.txt invites what robots.txt forbids
  4. The site gained a section after llms.txt was last changed

AI finding

The site gained a section after llms.txt was last changed

AI Info Severity: Low

Part of the audit llms.txt invites what robots.txt forbids. Finding id: ai.llmsTxtStale.

What it costs you

llms.txt is your list of pages for AI systems. A section added since is missing from that list.

What to do

Decide whether the section belongs in llms.txt, and add its main pages if it does.

What it checks

  • Llms.txt is older than the site structure

How to fix it

Add the section to llms.txt or leave it out on purpose

  1. Open /llms.txt and the section [section] side by side.
  2. If the section should be offered to AI systems, add links to its main pages.
  3. If not, dismiss the finding.

How to check: Fetch /llms.txt, then run this rule again after the next crawl.

A real case

A user found 18 broken links among the 1,733 entries of vercel.com/llms.txt: eight were a generated address ending in 'undefined/no-summary' and the rest were pages that had moved while llms.txt kept the old paths. Any AI agent following those entries got a 404.

Source: Vercel community forum, 13 August 2026

Thresholds

Thresholds for The site gained a section after llms.txt was last changed
NameDefaultMeaning
min_section_pages10A section is reported when it has at least this many indexable pages.

How to verify by hand

The owner: is the section meant for AI systems.

What this relies on

llms.txt was written once and not kept up with the site.

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