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JSON-LD (JavaScript Object Notation for Linked Data) is a structured-data format that describes the meaning of a page or content item in a form search engines and AI systems can read directly. For a glossary or content library, it uses schema.org types like DefinedTerm to mark up each entry's name and definition, powering rich search results and accurate AI citations.
JSON-LD is the format Google recommends for structured data: it lives in a single <script type="application/ld+json"> block in the page head, describing what a page or item is, an article, a product, a defined term, separately from the visible HTML. Search engines and AI systems parse it directly, which is why it powers rich results, knowledge panels, and increasingly the summaries AI search assistants generate.
A glossary of defined terms is a natural fit for JSON-LD's DefinedTerm and DefinedTermSet types: each entry can declare its name, definition, and membership in the broader glossary in a form machines can read directly, rather than inferring meaning from prose. Content platforms that generate this markup automatically, one JSON-LD block per item, kept in sync with the actual content, get consistent search visibility without a developer hand-writing markup per page.
JSON-LD can be rendered two ways: natively in the page's initial HTML, or injected afterward by JavaScript once the page loads. Native markup is visible to every crawler and AI system immediately; script-injected markup depends on that crawler executing JavaScript first, which not all of them reliably do. For content meant to be indexed and cited accurately, native JSON-LD is the more dependable choice.
ioMoVo generates native JSON-LD schema markup directly at the page level for its glossary and content library, DefinedTerm entries tied to their DefinedTermSet, rather than depending on client-side scripts, so search engines and AI systems see the structured data immediately. See the ioMoVo glossary.
No, it lives in the page's head as a script block and has no visual presence; it exists purely for search engines and other machines reading the page.
No, it makes a page eligible for one by clearly declaring its content type; whether a rich result actually appears depends on the search engine's own display decisions.