Knowledge Graph
The Knowledge Graph is Google's internal knowledge base of entities, meaning people, places, organisations and concepts, and of the relationships between them, which Google uses as the basis for the knowledge panels in its search results.
In practice
Consistent structured data, uniform company details across all channels and mentions on trustworthy third-party sites all help you to be recognised as a distinct, correctly linked entity in the Knowledge Graph, which in our experience is an important foundation for being cited as a source by AI search systems.