JSON-LD
Definition
JSON-LD is a W3C standard for expressing linked data in JSON structures.
JSON-LD extends JSON with semantic context and globally identifiable terms. It is often used on websites for structured data, for example with Schema.org vocabulary.
Simply explained
To additionally convey what the fields semantically mean in a normal JSON document.
Why it matters in practice
Relevant for machine-readable website information, knowledge graphs, and structured data.
Example from business
A company page describes organization, services, and articles machine-readably as JSON-LD with appropriate Schema.org types.
Limits and pitfalls
- Automatically equating JSON-LD with SEO ranking bonus; using incorrect Schema.org types; not aligning markup with visible content.
Origin & history
W3C published JSON-LD 1.1 as a Recommendation on July 16, 2020.
Use in mid-sized companies
- Possible applications: structured website data, semantic APIs, and knowledge graph integration.
Frequently asked questions
Is JSON-LD the same as Schema.org?
No, JSON-LD is a serialization format; Schema.org is a vocabulary. Does markup guarantee rich results? No.
Sources
- JSON-LD 1.1 Recommendation · W3C, JSON-LD 1.1 Recommendation
- Structured Data · Google Search Central, Structured Data
Sources checked on 10.10.2026.
Editorially reviewed on: