JSON-LD (JSON for Linking Data) is a W3C-standardized JSON syntax for encoding linked data, and Google's recommended structured-data format.
JSON-LD (JSON for Linking Data) is a W3C-standardized JSON syntax for encoding linked data, and Google's recommended structured-data format.
The W3C JSON-LD 1.1 specification defines the format. In practice a JSON-LD block is a JSON object with @context, @type, and optional @id/@graph keys.
See: What is JSON-LD?
JSON-LD (JSON for Linking Data) is a W3C-standardized JSON syntax for encoding linked data — it lets a web page declare structured metadata inline using vocabularies like schema.org, and it is Google's recommended structured-data format.
Structured data is machine-readable metadata added to a web page — typically as JSON-LD in the head — that describes the page's content using a shared vocabulary (schema.org) so search engines and answer engines can understand what the page is about beyond raw text.
Schema.org markup affects AI citations indirectly but reliably — it collapses the model's attribution problem by making the author, publisher, and answer text machine-readable, and it is the primary signal Google uses to render both classic rich results and the source strip in AI Overviews.