Integrated local/remote server computer architecture for electronic data transfer

Systems, methods, and computer program products for an integrated local/remote server computer architecture for electronic data transfer are disclosed. In some implementations, a local server computer in a local area network (LAN) is integrated with a network-based server computer outside the LAN, such that the local server computer acts as a cache server computer to the remote server computer. For data transfer between client devices within the LAN, a Domain Name System (DNS) server redirects requests for data transfer destined for the remote server computer to the local server computer to improve data transfer performance within the LAN. In some implementations, the data is also transferred or "mirrored" to the remote server computer (e.g., encrypted backup data) at a data transfer rate that is different from the data transfer rate in the LAN.