It turns out that Twitter is using a non-standard version of JSON lists for its exports, and you're going to need to make a quick change to the file it delivers if you want to be able to use your ...

Head or body, Mueller explains that Google can read both just fine. JSON structured data can be inserted in the head as well as the body of your pages, Webmaster Trends Analyst John Mueller ...

Today, JSON is the universal standard of data exchange. It is found in every area of programming, including front-end and server-side development, systems, middleware, and databases.

According to the official JSON-LD website: “Data is messy and disconnected. JSON-LD organizes and connects it, creating a better Web.