Structured Data Beyond the Basics

Most websites add a single Organization schema block and consider structured data "done." But the real power of structured data lies in building a connected knowledge graph using @graph, @id references, and isPartOf relationships.

The Schema Graph Concept

Instead of isolated JSON-LD blocks on each page, think of your structured data as a unified graph where every entity references others through @id connections.

Key Relationships

• isPartOf — connects WebPage to WebSite
• publisher — connects Article to Organization
• author — connects content to Person entities
• mainEntityOfPage — declares the primary entity of each page

Implementation Steps

1. 1Define your Organization entity with a unique @id
2. 2Create a WebSite entity that references the Organization
3. 3Every WebPage references the WebSite via isPartOf
4. 4Every Article references both its author and publisher
5. 5Use BreadcrumbList to encode hierarchy

Validation

Check your schema graph for:

• Disconnected entities (no @id references)
• Missing isPartOf relationships
• Incomplete property coverage
• Duplicate entity declarations across pages