Main heading: what it measures

The check reads the response your server returns and records what it found. That observation is stored with the report, so reopening an old audit shows what was true on the day it ran rather than what the page says now. It is not a live measurement, and it is not a model’s opinion of your page.

Ruleset h1 · category seo · can count towards the checklist score

• —Whether the heading is visually hidden or styled to look like something else.
• —Whether the outline reads well to a person.

Use one h1 that describes the page, and let the sections below it be h2s.

Then verify it yourself rather than trusting the next report: reload the page, view the source, and look at the thing the check described. A check you can falsify in ten seconds is the only kind worth having.

The free structured data checks this on one URL and needs no signup — the same rule, on the same page, with no credit spent. When you want the whole page assessed, an audit is covered by the trial credit.

• HTTPS connection
• Page title
• Meta description
• Indexing directives
• Canonical URL
• Mobile viewport

All checks and their definitions as JSON