1. An apparatus comprising: a receiving unit configured to receive trigger information to access data content interlocking with an audio visual content on a network server, wherein the trigger information comprises a diffusion parameter which controls access timing to the network server so as to avoid a concentration of access to the network server; and an access unit configured to access the data content on the network server based on the trigger information; wherein at least one of the receiving unit and the access unit is implemented via a processor.