A distribution control system is connected to a plurality of communication terminals that output image and/or sound data indicating at least either one of an image and sound and transmits the image and/or sound data to the communication terminals. The distribution control system includes a browser management unit is configured to start up a browser appropriate for the communication terminals; a browser configured to generate the image and/or sound data by rendering content data; a transmitter configured to transmit the image and/or sound data to the communication terminals; and a receiver configured to receive input information from the communication terminals. The transmitter is configured to transmit the image and/or sound data updated by the browser in accordance with the input information to the communication terminals.