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Heading hierarchy
Heading hierarchy is correct
What this check looks at
Optia checks that headings step down without skipping levels — H1 to H2 to H3 — with no jumps like H1 straight to H4.
Why it matters
Headings are the outline of your page. A clean hierarchy helps search engines understand structure and pick passages for featured snippets, and it is essential for screen-reader users, who navigate by heading level.
How to fix it
- Start from a single H1 and nest sections with H2, subsections with H3, and so on.
- Never choose a heading level for its font size — style headings with CSS instead.
- Do not skip levels going down (H2 → H4); coming back up any number of levels is fine.