This page answers some common questions about using JSON-LD for adding structured data to websites. You can use JSON-LD to add metadata about a page in a machine-readable form.
What is JSON-LD?
JSON-LD is a lightweight Linked Data format based on JSON.
What is Linked Data?
Linked Data empowers people that publish and use information on the Web. It is a way to create a network of standards-based, machine-readable data across Web sites. It allows an application to start at one piece of Linked Data, and follow embedded links to other pieces of Linked Data that are hosted on different sites across the Web.
What's a good place to learn web development?
There are many online resources, but my current favorite is MDN Web Docs.