Systems and methods include reception of a request for access to a target domain, the request including a source Internet Protocol (IP) address, determination of whether the source IP address is one of a plurality of IP addresses indicated within stored first data, determination, if it is determined that the source IP address is one of the plurality of stored IP addresses, of whether the target domain is one of a plurality of domains indicated within stored second data, and forwarding, if it is determined that the source IP address is one of the plurality of stored IP addresses and the target domain is one of a plurality of domains indicated within stored second data, of the request to the target domain.