— Virtuoso-powered SPARQL endpoints
A filterable knowledge-graph view of the Virtuoso segment in the LOD Cloud endpoint analysis.
Snapshot: source sheet read and endpoint availability checked 16 September 2026. Only operational, unique SPARQL endpoint URLs are included; all Bio2RDF nodes are excluded. Triple counts are shown exactly as recorded. Open source sheet ↗
Virtuoso endpoint graph
Directed links use ssn:deployedOnPlatform.
How to read the graph
Every directed edge is ssn:deployedOnPlatform. Edge labels are links to the W3C SSN predicate through the configured resolver; hover an edge to read its semantic description.
Radius is logarithmic. It preserves the enormous range—from tens of thousands to tens of billions of triples. Hollow endpoint nodes have no triple count in the source.
Open Controls to search, filter, switch Core/Full density, or enter Advanced mode. Drag a node to pin it, double-click to unpin it, and click the graph before panning or zooming.