1. A method of classifying web content, implemented on one or more computer processors, the method comprising: using at least one of the processors, receiving content of a web page; using at least one of the processors, determining a first property associated with the content of the web page, the first property comprising static content associated with the web page; using at least one of the processors, executing active content associated with the webpage; using at least one of the processors, determining a second property associated with the content of the web page based at least in part on the executing, the second property comprising the active content; using at least one of the processors, evaluating a logical expression relating the first property and the second property; and using at least one of the processors, associating the web page with a category based on a result of the evaluation, wherein the evaluation of the logical expression at least in part evaluates whether a constant value matches at least a portion of the content of the web page.