Answer
Structured data is machine-readable information that explains page content. • It uses a known vocabulary such as Schema.org. • It may describe a product price, recipe time, or event date. • Search engines may use it for richer search results.
💡 Simple Example
<p>A product page can mark its name, price, rating, and availability.</p>
⚡ Quick Revision
Structured data labels page facts so search engines understand them.