Structured data added to a page’s code, using the shared vocabulary defined at schema.org, that explicitly labels what a piece of content is — a recipe, a product, an FAQ, an organization — rather than leaving search engines to infer it from surrounding text. Schema markup is what powers rich results (star ratings, FAQ dropdowns, breadcrumbs) in Google Search, and it’s increasingly important for AI search too, since clearly labeled entities are easier for an LLM to extract and cite correctly. See the schema markup complete guide and schema for AI search.
Part of the Plain Intelligence glossary. See all terms.