A JavaScript-based format for embedding structured data (schema.org markup) in a webpage, written as a single script block rather than scattered through HTML attributes. JSON-LD is Google’s recommended structured-data format because it’s easy to generate, validate, and update independently of a page’s visible markup. Nearly all modern schema markup — Article, FAQPage, Organization, Product, and more — is implemented as JSON-LD rather than the older microdata or RDFa formats. See JSON-LD vs microdata vs RDFa and how to test and validate schema markup.
Part of the Plain Intelligence glossary. See all terms.