The software has a proven record of high reliability. Software updates are shipped with automatic installation scripts. All requests are logged in the http access log. All blocked requests are also logged in the http error log, showing the category responsible for the block. The URL Content Filter database is maintained by Freemont Avenue Software, an organization that has been engaged in network and Internet security for over six years.
Additional software filters out legitimate sites and removes redundancies.
A team of skilled analysts who review each site to determine if it belongs on the one or more of the lists reviews the filtered output. FAS maintains URL Content Filters for more than 33 categories, which include Adult Content, Hate groups, Violence, Leisure Activities, Gambling, Chat, Sports, Stocks, Jobs and many others. Additional categories can be added dynamically by businesses or schools as needed. Keywords produce very inaccurate results. If no pathname is included the entire site is blocked.