Technologies are described for semantic cache for connected devices (semantic cache) as a set of next generation cloud services to primarily support the Internet of things scenario: a massive network of devices and device application services inter-communicating, facilitated by cloud-based semantic cache services. The semantic cache may be an instrumented caching reverse proxy with auto-detection of semantic web traffic, public, shadow and private namespace management and control, and real time semantic object temporal versioning, geospatial versioning, semantic contextual versioning and groupings and semantic object transformations.