The table below lists and describes the categories that are filtered by SurfClean.

Alcohol: Sites promoting the use of alcohol, including drink recipies, home brewing methodology, advertisements, etc.	Lifestyle: Sites that contain material relative to an individuals personal life, whether straight, gay, lesbian, or otherwise; any site pertaining to any particular culture, behavior, organization, society, club, etc.
Alternative Journals: Sites for non-mainstream periodicals, information on self-awareness, spirituality, healing arts, holistic living, junk culture, fringe media, art perspectives, etc.	Anarchy: Sites containing information regarding militias, weapons, anti-government groups, terrorism, overthrowing of the government, killing methods, etc.
Obscene/Tasteless: Sites that involve such things as mutilation, murder, bodily functions, horror, death, candid scenes, executions, violence, etc.	Criminal Skills: Sites that promote illegal activity, such as pyrotechnics, computer hacking, credit card number generating, password cracking, surveillance, and murder.
Personals/Dating: Contains sites that are related to personal ads, dating sites, dating services, relationships, introductions, etc.	Cults/Gothic: Sites promoting cult or gothic subject matter, use of mind control, paranoia, fear, and any other type of psychological control or manipulation.
Pornography: Sites that contain nudity of any sort, vulgarity, including the likes of Playboy, Hustler, and Penthouse.	Drugs: Sites that promote the use or purchase of illegal drugs. These may include marijuana seeds for sale, growing methods, techniques and products for testing clean for drugs, information on acids and/or "mushrooms", and all other forms of narcotics.
R-Rated: Dating services pertaining to anything which involves 18 and over dating, lingerie and swimsuits, revealing picture. Sites that are adult in nature without being explicitly pornographic.	Gambling: Sites which encourage gambling such as betting sites, bookmaker odds, lottery, bingo, horse/dog track, online sports betting, online casinos, etc.
Hate and Discrimination: Sites that contain material related to discrimination of any group of people based on race, religion, gender, nationality, etc.