Review schema is a schema.org structured data type for marking up product or service reviews — enabling star ratings to appear in rich results and providing structured social proof signals to AI systems. It is implemented using the Review or AggregateRating schema types.
Review schema converts user-generated review data into machine-readable entity signals. Star ratings in rich results increase click-through rates for pages that earn them, and the structured review data feeds AI systems’ understanding of a brand’s reputation and customer experience signals. For businesses whose AI brand representation includes characterizations of customer satisfaction, correctly implemented review schema strengthens the structured evidence layer beneath those characterizations.
