AB6 — Chapter 25 - Audit GEO

Criterion AB6: llms.txt File — guide + checklist

PART 3 - AI Mastery Chapter 25 - Audit GEO Keyword : fichier llms.txt

This criterion is discreet… until it blocks SEO performance.

The criterion **AB6 — llms.txt File** is part of our SEO checklist (335 criteria). Here, you have a **practical** method to check and fix it — with a concrete example.

What exactly this criterion covers

This criterion is discreet… until it blocks SEO performance.

**AB6 — llms.txt File** (Chapter 25 - GEO Audit): Presence and correct configuration

Why it matters (SEO + UX)

Why it matters: it is a UX point that eventually translates into SEO. When poorly applied, we often observe: ambiguity (wrong associated query), duplication between pages, or loss of performance on indexing rate.

On volume-generated sites, this criterion also serves as a **safeguard**: a stable rule prevents 1,000 errors at once.

How to check (step by step)

Approach: validation via Search Console (real data). Recommended tool: **People Also Ask**.

  1. Open the source code and locate the concerned element (tag/structure).
  2. Check the hierarchy and consistency with H1 + intro.
  3. Run a crawl to detect pages violating the criterion.

Tip: first isolate 10 “representative” URLs (top pages + generated pages) before scaling the fix.

How to fix properly

Strategy: make a “clean” fix (no patch), then measure.

  • Rewrite the plan: clear H1, H2 = sub-questions, H3 = details.
  • Add a differentiating element (scope, method, example) to avoid duplication.
  • Check consistency with the intent (info / comparison / action).

Then: re-crawl 50–200 URLs, then monitor Search Console over 7–14 days (impressions/CTR/indexing).

Concrete example (illustrative)

Example (illustrative):

  • **Context**: category page for insurance in Lyon
  • **Before**: generic H1 + sections without hierarchy (incoherent H2/H3).
  • **After**: intent-oriented H1 + H2 by sub-questions (case: category page — insurance).
  • **Note**: Goal: make the plan “scannable” and aligned with intent.

Checklist to tick

  • [ ] Matches the intent
  • [ ] Unique
  • [ ] Concrete examples
  • [ ] Natural keywords
FAQ

Frequently asked questions — AB6

What is the most common mistake on “llms.txt File”?

Trying to “optimize” by adding too many keywords, which degrades readability and creates repetitions.

Which tool is the fastest for large-scale checking?

For this type of criterion, a crawl (e.g., Screaming Frog) + targeted verification in People Also Ask is generally the fastest combo.

How to prevent this from happening on 10K generated pages?

Freeze an auto-generation rule (title/structure/schema/URLs) + add automatic control (crawl or test) before production import.

Ready to go from theory to action?

Validate this criterion with an audit, then deepen the method in the Academy.

Audit with the tool → Learn in the Academy →