Provided is a method of managing search mediation information, the method including: creating a count field corresponding to each piece of search mediation information; identifying an Internet Protocol (IP) address of a particular class, from which the user's search mediation information is received; determining whether the identified IP address is a count permission address; and increasing the indicator and storing the increased indicator in the count field corresponding to the search medium information in response to a determination that the identified IP address is a count permission address, and not increasing the indicator in response to a determination that the identified IP address is not a count permission address.