Glossary · Websites and content systems

Structured data

Machine-readable fields that describe visible entities and content using an agreed vocabulary and supported format.

Also called: schema markup, Schema.org

Definition

Structured data can identify an organization, breadcrumb trail, service, article, product, event, or other supported entity using explicit properties. It should represent truthful content visitors can also find on the page.

Why it matters

It can reduce ambiguity for search and other systems and support eligible enhanced presentations when platform requirements are met.

Common misunderstanding

Adding schema markup does not guarantee a rich result, ranking, or inclusion, and invented fields can create policy and trust problems.

Related system family: Websites & Publishing

Sources

Last reviewed July 16, 2026

Return to the complete glossary