Discovery for agents
Structured data (JSON-LD)
Also known as: JSON-LD, Schema.org
Structured data is machine-readable markup (usually JSON-LD following schema.org) embedded in a page so search engines and agents understand what it contains.
Structured data annotates a page with explicit, typed facts using a shared vocabulary - almost always schema.org types encoded as JSON-LD in a script tag. It states plainly "this is a DefinedTerm", "this is a Dataset", "these are the breadcrumbs".
Search engines use it for rich results; AI systems use it to extract facts reliably instead of inferring them from prose.
In GraphCanon
GraphCanon emits JSON-LD across the site: DefinedTerm and DefinedTermSet for the glossary, Dataset for the corpus, plus breadcrumbs and FAQs - all sourced from the same data the pages render.
See also
Related terms
Last reviewed 2026-07-09