Structured data (JSON-LD) JSON-LD structured data using schema.org vocabulary is the standard for machine-readable page annotations, enabling search engines to display rich results and AI agents to extract factual ground truth. Implementation requires mirroring visible content, using absolute URLs, and validating with tools like Schema.org and Google's Rich Results Test. Structured data JSON-LD Machine-readable annotations that describe the content of a page using the schema.org vocabulary. JSON-LD is the format search engines and AI agents expect. What it is Structured data is a set of machine-readable statements that describe what a page is about, using the shared vocabulary at schema.org https://schema.org/ . The recommended serialisation is JSON-LD: a