Abstract: A method for detecting unauthorized trademark use on the Internet searches the Internet to locate instances of a trademark. Uniform Resource Locators (URLs) corresponding to the instances of the trademark are identified. Any of the URLs that are pre-authorized to use the trademark are removed from further consideration. Each of the URLs and pre-specified information corresponding thereto are stored in a database. A report is displayed to a user. The report includes a page that lists at least some international trademark classes for which unauthorized use of the trademark has been detected with respect to the URLs and findings associated therewith. The findings including at least some of the pre-specified information. The method may generate at least one score for each of web sites respectively corresponding to the URLs, based on at least one of a probabilistic and a deterministic method applied to at least one pre-defined class profile.