SEO & AI Search

JSON-LD

Quick definition

A JavaScript Object Notation format for Linked Data — the preferred method for embedding schema.org markup in HTML.

What it actually means

JSON-LD (JavaScript Object Notation for Linked Data) is the Google-preferred way to add structured data. It sits in a script type="application/ld+json" tag in the head or body, separate from visible content, making it easier to maintain than older microdata or RDFa formats. Google's Rich Results Test and the schema.org validator both expect JSON-LD as the default. Every modern eCommerce site should emit at minimum: Organization, WebSite, Product (on PDPs), and BreadcrumbList JSON-LD.

Related terms

Schema.org Structured Data

A shared vocabulary of structured data markup understood by Google, Bing, ChatGPT, Claude, and most AI agents.

FAQPage Schema

JSON-LD structured data that marks question-and-answer blocks on a page so search engines and AI tools can extract them.

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