Web, domains and email
structured data
In short and in plain language
Structured data is extra detail in the code of a page.
It describes content with fixed terms. That way machines can read it.
Examples are opening hours, prices, reviews or common questions.
Search engines can use it to show results with more details. But there is no right to this.
Definition
Structured data is additional information in the code of a page that describes content in a machine-readable way, using a fixed vocabulary. Examples include opening hours, prices, reviews or frequently asked questions. Search engines can evaluate it and display results in an enhanced form, but there is no entitlement to this.