A system and method for verified presence tracking. A request for a location is received over a network. The request comprises a request type, a request source and at least one request target. Location data relating to the request targets is retrieved from a plurality of location data sources. The reliability of the retrieved location data is determined. A response is formulated using based on the request type, the retrieved location data, and the determined reliability of the retrieved location data. The response is then transmitted over the network to the request source.