Understanding JSON-LD: The Hidden Data on Every Page
JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding structured data on web pages. It's commonly used for SEO, product listings, reviews, events, and more.
Why JSON-LD Matters for Data Extraction
Many websites embed rich structured data in JSON-LD format. This data is often more complete and better organized than what appears visually on the page.
Common JSON-LD Types
- Product — Name, price, availability, description, reviews
- Review — Rating, author, item reviewed
- Event — Date, location, organizer, ticket info
- Article — Headline, author, date published, image
- FAQ — Questions and answers in structured format
- BreadcrumbList — Navigation path
How to Extract JSON-LD
DataVizForge automatically extracts JSON-LD when you enter a URL on the Extract page. The structured data appears alongside HTML tables and lists, ready for charting.
Why It's Valuable
JSON-LD extraction gives you access to clean, machine-readable data that would otherwise require manual collection or API access.