Standardised markup that describes a page's content to search engines in a machine-readable form.
ID
SS-DF-039
Confidence
High · 89
Evidence
Strong
Updated
2026-07-08
Definition
Standardised markup that describes a page's content to search engines in a machine-readable form.
Structured data is a formalised way of annotating page content, such as products, reviews, events or articles, so search engines and AI systems can understand entities and their relationships rather than inferring them from text. It enables rich results in search and helps machines extract facts reliably, which is increasingly important for AI answer engines that surface structured information. Accuracy and alignment with visible page content are essential, as misleading markup can trigger manual actions.