content · content.h1.multiple
More than one H1 on the page
Multiple H1s split the topical signal and leave crawlers guessing which one describes the page.
Why it matters
Multiple H1s split topical relevance signals. While HTML5 technically allows multiple H1s inside <section>, in practice Google penalizes the ambiguity.
Authoritative reference
https://developers.google.com/search/docs/appearance/structured-data
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