The Cache service provides access to often requested baselayers (such as BlueMarble and the DLR Basemap). It provides OGC Web Map Tiling Service (WMTS) and the Tile Map Server (TMS) interfaces as implemented by the Geowebcache project. In combination with compliant clients - such NASA World Wind or OpenLayers - this service allows for fast web delivery of pre-rendered datasets. The Cache service uses the Geowebcache implementation.