What is JSON-LD?

1 min read Last updated: 18 Sep 2026

JSON-LD is a format for structured data that lets you give search engines additional information about the content of a website. The abbreviation stands for JavaScript Object Notation for Linked Data.

With JSON-LD you can state, for example, whether a page is a product, an article, a company, a review or an event.

How does JSON-LD work?

The data sits in a dedicated block of code in the page’s HTML. Visitors do not normally see it, but search engines can read it and understand the page better.

That way Google knows more precisely what a page is about and which information matters most.

Among the things JSON-LD can describe:

  • company name and contact details
  • products and prices
  • reviews and star ratings
  • FAQs
  • articles and authors
  • opening hours and locations

Google recommends JSON-LD as its preferred format for structured data, because it is cleanly separated from the page content and easier to maintain.

Why JSON-LD matters

JSON-LD can help you earn rich snippets in the search results, for instance star ratings, FAQs, product information or event data.

For SEO and GEO that matters, because it lets search engines understand your content better and present it more prominently.