Structured data
Structured data is a standardized markup — schema.org, most often in JSON-LD — that describes to machines what a page contains: an organization, an article, a product, a FAQ. It is required for most rich result formats.
In practice
The markup is an application, not a guarantee — Google decides whether to display it. Its absence guarantees you cannot apply at all. Beyond rich results, it helps AI assistants identify your entity: who publishes, where, since when. Every page our engine produces carries its full graph: Organization, Article or Service, breadcrumb.