A communication device includes a receiver, a command supplying device, an information transmitter, and a web-page transmitter. The receiver receives requests from an external device. The command supplying device determines that a request including a first address including a specific host name is a first request. The command supplying device transmits a command, including an instruction to transmit a second request, to the external device when the first request is received. The command supplying device determines that a request including a second address including a specific IP address is a second request. The information transmitter transmits information to the external device when the second request is received. A combination of the specific IP address and a cookie is stored on the external device when the information is received. The web-page transmitter transmits web page data to the external device when the second request is received.