ANSWERS

Do headings matter to AI models?

Yes. Headings and a logical hierarchy help readers and parsers follow where a claim starts and ends, so poor structure makes good content harder to follow. One clear H1 per page is a sensible convention, not an AI eligibility requirement, and headings phrased as questions suit pages that answer one. ye5's GEO Web audit checks heading structure across your site.

What is the H1-H6 hierarchy, and why is one H1 per page a sensible convention?

HTML defines six heading levels, H1 through H6. Together they form a nested outline of the page. H1 states the page's single topic. H2s divide that topic into sections. H3 through H6 divide a section further when it needs the depth. One clear H1 is a sensible convention that keeps the page's topic unambiguous for readers and parsers. Skipped levels, such as a jump from H2 straight to H4, make the outline harder to follow.

—H1 — the page's single question or topic. One per page by convention.
—H2 — each major section. One full sub-claim, phrased as a question or a complete statement.
—H3 through H6 — finer subdivisions inside a section, used only when the section branches into distinct parts.

How do headings help a page get read and quoted?

Headings and semantic structure help interpretation, and models can also read prose. Systems may retrieve passages or broader context rather than always pulling one section. A heading that names its claim makes the passage under it easier to quote with its context intact. A vague heading like "Overview" names nothing, so the text under it arrives unlabelled. General extraction rules — lists, tables, and heading style together — are covered on (see: What makes content citable to an AI model?). This page stays narrow on heading mechanics.

Should headings be phrased as questions?

Phrasing a heading as a question maps it to how people ask AI systems things. Customers type questions into Claude, ChatGPT, and Gemini, not keyword strings. A heading that mirrors a real question gives a heading-and-answer pair that is easier to quote. A heading does not need a question mark to work. A complete claim works too, if it states the claim in full instead of naming a topic.

Weak heading	Stronger heading
Details	What is heading hierarchy?
Learn More	How should headings be structured for AI extraction?
About	Does heading order affect AI extraction?

What makes heading structure harder to follow?

—Skipped levels — jumping from H2 to H4 with no H3 in between, which makes the outline harder to follow.
—Multiple H1s — more than one H1 makes the page's main topic ambiguous, and one clear H1 is the convention.
—Styled text standing in for headings — bold or large body text carries no heading markup, so it does not appear in the page's outline.
—Vague labels — "Overview," "Best Practices," headings that don't name the claim underneath them.

ye5's GEO Web audit checks heading structure, along with your site's access and readability.

Cleanup of how lists and tables carry facts is covered on (see: Do lists and tables help AI extract my content?). The wider four-check readability standard is on (see: How do I make my website readable to AI crawlers?).

FAQ

Does heading order affect SEO the same way it affects AI extraction?

Heading order has mattered for SEO and for screen readers for years. The same structural need serves a different reader: automated readers interpreting the page, rather than a search index parsing it for relevance.

Can bold or large text stand in for a heading tag?

Bold or large text does not substitute for a heading tag. Styled-only text carries no heading markup, so it sits outside the page's outline.

How many H2s does a page need?

There's no fixed number. Structure headings around real sub-claims, not around a target count. Most pages in this format carry 3-6.