// mime type · application type
application/ld+json
JSON-LD (linked data) · .jsonld
What application/ld+json is
application/ld+json is JSON-LD — JSON that carries linked-data semantics. It's the recommended way to embed structured data (Schema.org) in a page for search engines.
How it's used
You'll see this as a Content-Type value on requests and responses — for example Content-Type: application/ld+json. It's the type associated with the .jsonld file extension. Application types cover structured data and binary formats — from JSON and XML to PDFs, archives, and Office documents.
Other application types
application/json application/ld+json application/xml application/javascript application/pdf application/zip application/gzip application/octet-stream application/x-www-form-urlencoded application/wasm application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/vnd.openxmlformats-officedocument.wordprocessingml.document