ApplicationText-based

`application/ld+json`

JSON-LD

Reference for application/ld+json, the MIME type for JSON-LD linked data used in SEO structured data and knowledge graphs.

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Expected extensions: .jsonld

HTTP Content-Type Header

HTTP Header

Content-Type: application/ld+json; charset=utf-8

Associated File Extensions

.jsonld

Quick Facts

MIME Type	application/ld+json
Category	Application
Type	Text-based (human-readable)
Extensions	.jsonld

Common Usage

JSON-LD (JSON for Linked Data) embeds structured data in web pages for search engines. Google recommends JSON-LD for schema.org markup, enabling rich search results (recipes, events, products, FAQs).

It is also used in the W3C Verifiable Credentials standard and ActivityPub.

Code Examples

HTML

<!-- Link or embed with explicit type -->
<link rel="stylesheet" href="file.jsonld" type="application/ld+json">

<!-- Or for script/media elements -->
<script type="application/ld+json" src="file.jsonld"></script>

Node.js

// Express.js
app.get('/file', (req, res) => {
  res.type('application/ld+json');
  res.send(data);
});

// Node.js http
res.writeHead(200, { 'Content-Type': 'application/ld+json' });

nginx

# nginx.conf — add to types block or use default
types {
    application/ld+json  jsonld;
}

# Or set for a specific location
location /api/ {
    default_type application/ld+json;
}