JSON-LD stands for JavaScript Object Notation for Linked Data. It is a lightweight data format that allows you to structure data in a way that is easy for both humans and machines to read. JSON-LD is often used to provide context to data on the web, making it easier for search engines and other applications to understand the relationships between different pieces of information. One of the main benefits of JSON-LD is its ability to link data across different sources. By using URIs (Uniform Resource Identifiers), JSON-LD can connect related data points, enhancing the semantic understanding of the information. This makes it particularly useful for applications in SEO (Search Engine Optimization) and knowledge graphs.