JSON-LD

###JSON-LD stands for JavaScript Object Notation for Linked Data, which consists of multi-dimensional arrays (think: list of attribute-value pairs).

It is an implementation format for structuring data analogous to Microdata and RDFa. Typically, in terms of SEO, JSON-LD is implemented leveraging the Schema.org vocabulary, a joint effort by Google, Bing, Yahoo!, and Yandex in 2011 to create a unified structured data vocabulary for the web. (However, Bing and other search engines have not officially stated their support of JSON-LD implementations of Schema.org.)

JSON-LD is considered to be simpler to implement, due to the ability to simply paste the markup within the HTML document, versus having to wrap the markup around HTML elements (as one would do with Microdata). ::: tip Google recommends using JSON-LD for structured data whenever possible. ::: More about JSON-LD