Title tag
The `<title>` element describing a page, used as the primary input to the clickable headline in search results — which Google may rewrite.
TechnicalH1Headings
Heading structure (H1-H6)
The hierarchy of HTML heading elements that conveys a document's outline to users, assistive technology and parsers.
In full
Google has said multiple H1s are acceptable and that headings are used to understand page structure rather than as a strong ranking lever. Their real value is threefold: accessibility, snippet and passage extraction, and — increasingly — machine consumption, since headings help both search engines and language models locate the section that answers a question. Skipping levels or using headings purely for visual sizing undermines all three.
Example
Converting a bolded paragraph acting as a section label into a real `<h2>` makes the section eligible to be extracted as a featured snippet.
Related terms
Featured snippet
A block at or near the top of Google's results that quotes an extracted answer from a page, with a link to the source.
Semantic HTML
Using HTML elements according to their meaning — article, nav, main, table, time — rather than generic divs styled to look right.
Meta description
A page-level summary in a `<meta name="description">` tag, used as a candidate for the search snippet but not as a ranking factor.
Passage ranking
Google's ability to rank a page based on the relevance of a specific passage within it, even when the page overall is about something…