JSON-LD
Definition
JSON-LD is a JSON-based format for linked data, commonly used to embed Schema.org structured data in a web page’s script tag.
Full definition
JSON-LD (JavaScript Object Notation for Linked Data) lets publishers describe entities without intertwining markup into HTML elements. A typical pattern is <script type="application/ld+json">…</script> in the document head or body.
It is the preferred structured-data embedding approach for many SEO implementations. See Structured Data and Schema.org.
Example
{"@context":"https://schema.org","@type":"Organization","name":"Example Co","url":"https://example.com"}