M17 — Chapter 14 - GEO & AEO

Criterion M17: Structured HTML Tables — guide + checklist

PART 2 - Advanced Strategies Chapter 14 - GEO & AEO Keyword : tables html structurées

This criterion often makes the difference in audits.

Criterion M17 — Structured HTML Tables 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 often makes the difference in audits.

M17 — Structured HTML Tables (Chapter 14 - GEO & AEO): Tables with <th> for headers, comparative data

Why it matters (SEO + UX)

Why it matters: it is a safeguard against duplicate content and cannibalization. When poorly applied, common issues include ambiguity (wrong associated query), duplication between pages, or loss of performance on impressions.

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

How to check (step by step)

Approach: quick audit (manual + 1 tool). Recommended tool: AnswerThePublic.

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

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

How to fix properly

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

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

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

Concrete example (illustrative)

Example (illustrative):

  • Context: service landing page for insurance in Algiers
  • Before: generic H1 + sections without hierarchy (incoherent H2/H3).
  • After: intent-oriented H1 + H2 by sub-questions (case: service landing — insurance).
  • Note: Goal: make the structure scannable and aligned with intent.

Checklist to tick

  • [ ] Matches the intent
  • [ ] Respects: tables with <th> for headers
  • [ ] Unique
  • [ ] Concrete examples
  • [ ] Natural keywords
FAQ

Frequently asked questions — M17

What is the most common mistake on “Structured HTML Tables”?

Fixing an isolated page without correcting the template/import: the error recurs with the next generation.

Which tool is the fastest for large-scale checking?

For this type of criterion, a crawl (e.g., Screaming Frog) plus targeted verification in AnswerThePublic is generally the fastest combo.

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

Freeze an auto-generation rule (title/structure/schema/URLs) and 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.

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