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Heading Tags Test

the H1–H6 heading hierarchy

What is it?

The "Heading Tags Test" tool from TeckBlaze analyzes the H1–H6 heading hierarchy in real time. You enter a URL above, we fetch the page exactly as Googlebot would, isolate the tested element, compare it to 2026 best practices, and tell you in plain words whether it passes, needs work, or is critical.

Why heading tags test still matters in 2026

HTML structure guides crawlers and user experience. A broken hierarchy disrupts content analysis and directly impacts ranking.

The newer reason: AI answer engines and link previews

AI models chunk content by sections. A clear heading hierarchy acts as their table of contents — broken structure chunks badly and citations lose context.

Common mistakes worth checking

How do I fix it?

Fixing the H1–H6 heading hierarchy usually takes minutes once you know where to look. Below: the code example, where to edit it based on your stack, the usual causes, and the best practices that keep the issue away.

Example

HTML

<h1>Sujet principal</h1>
<h2>Section A</h2>
  <h3>Sous-section</h3>
<h2>Section B</h2>

Where to make the change

Common causes and resolution

Best practices

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