A communication device for performing a communication through a network includes a storing unit configured to store a plurality of threshold values of communication speeds indicative of ranges of communication speeds and, associated therewith, a plurality of displaying methods for indicating conditions of communication in the ranges of communication speeds, respectively, an acquiring unit configured to acquire an available communication speed, and a displaying unit configured to compare the available communication speed with the threshold values of communication speeds stored in the storing unit, determine a range of communication speeds that the available communication speed belongs to, and display a condition of communication in the available communication speed chronologically in a displaying method which corresponds to the determined range of communication speeds.