Adult Adult / Mature Content Sites with profane or vulgar content generally considered inappropriate for minors; includes sites that offer erotic content or ads for sexual services, but excludes sites with sexually explicit images Adult Illegal or Prohibited Content Sites that provide information about or software for sharing and transferring pages related to illegal or prohibited content in international law. Adult Pornography Sites with sexually explicit imagery designed for sexual arousal, including sites that offer sexual services Adult Sex Education Sites with or without explicit images that discuss reproduction, sexuality, birth control, sexually transmitted disease, safe sex, or coping with sexual trauma Adult Intimate Apparel / Swimsuit Sites that sell swimsuits or intimate apparel with images of models wearing them Adult Nudity Sites showing nude or partially nude images that are generally considered artistic, not vulgar or pornographic Communications and Search Short URL Sites that provide URL shortening services, and the shortened URLs provided by the shortening services Adult Alcohol / Tobacco Sites that promote, sell, or provide information about alcohol or tobacco products Adult Illegal / Questionable Sites that promote and discuss how to perpetrate nonviolent crimes, including burglary, fraud, intellectual property theft, and plagiarism; includes sites that sell plagiarized or stolen materials Adult Tasteless Sites with content that is gratuitously offensive and shocking; includes sites that show extreme forms of body modification or mutilation and animal cruelty Adult Gambling Sites that promote or provide information on gambling, including online gambling sites Adult Violence / Hate / Racism Sites that promote hate and violence; includes sites that espouse prejudice against a social group, extremely violent and dangerous activities, mutilation and gore, or the creation of destructive devices Adult Weapons Sites about weapons, including their accessories and use; excludes sites about military institutions or sites that discuss weapons as sporting or recreational equipment Adult Abortion Sites that promote, encourage, or discuss abortion, including sites that cover moral or political views on abortion Communications and Search Dynamic DNS Sites that utilize dynamic DNS host services to map their domain names to dynamic IP addresses. Lifestyle Recreation / Hobbies Sites about recreational activities and hobbies, such as collecting, gardening, outdoor activities, traditional (non-video) games, and crafts; includes sites about pets, recreational facilities, or recreational organizations Lifestyle Arts Sites about the visual arts, such as painting and sculpture Lifestyle Entertainment Sites that promote or provide information about movies, music, non-news radio and television, books, or magazines Business Business / Economy Sites about business and the economy, including entrepreneurship and marketing; includes corporate sites that do not fall under other categories Lifestyle Cult / Occult Sites about alternative religions, beliefs, and religious practices, including those considered cult or occult Network Bandwidth Internet Radio and TV Sites that primarily provide streaming radio or TV programming; excludes sites that provide other kinds of streaming content Communications and Search Internet Telephony Sites that provide Web services or downloadable software for Voice over Internet Protocol (VoIP) calls Adult Illegal Drugs Sites that promote, glamorize, supply, sell, or explain how to use illicit or illegal intoxicants Adult Marijuana Sites that discuss the cultivation, use, or preparation of marijuana, or sell related paraphernalia General Education School sites, distance learning sites, and other education-related sites Internet Security Insecure IoT Connections Insecure internet connections that may potentially abuse, compromise or damage IoT devices. Lifestyle Cultural Institutions Sites controlled by organizations that seek to preserve cultural heritage, such as libraries or museums; also covers sites owned by the Boy Scouts, the Girl Scouts, Rotary International, and similar organizations Lifestyle Activist Groups Sites that promote change in public policy, public opinion, social practice, economic activities, or economic relationships; includes sites controlled by service, philanthropic, professional, or labor organizations Business Financial Services Sites that provide information about or offer basic financial services, including sites owned by businesses in the financial industry Business Brokerages / Trading Sites about investments in stocks or bonds, including online trading sites; includes sites about vehicle insurance Lifestyle Games Sites about board games, card games, console games, or computer games; includes sites that sell games or related merchandise General Government / Legal Sites about the government, including laws or policies; excludes government military or health sites General Military Sites about military institutions or armed forces; excludes sites that discuss or sell weapons or military equipment General Politics Sites that discuss or are sponsored by political parties, interest groups, or similar organizations involved in public policy issues; includes non-hate sites that discuss conspiracy theories or alternative views on government General Health Sites about health, fitness, or well-being General Computers / Internet Sites about computers, the Internet, or related technology, including sites that sell or provide reviews of electronic devices Communications and Search Proxy Avoidance and Anonymizers Sites which can be used to circumvent proxy servers and web filtering systems, or make Internet activity anonymous or untraceable, including sites that provide tools for those purposes Communications and Search Search Engines / Portals Search engine sites or portals that provide directories, indexes, or other retrieval systems for the Web Communications and Search Internet Infrastructure Content servers, image servers, or sites used to gather, process, and present data and data analysis, including Web analytics tools and network monitors Communications and Search Blogs / Web Communications Blog sites or forums on varying topics or topics not covered by other categories; sites that offer multiple types of Web-based communication, such as email or instant messaging Network Bandwidth Photo Searches Sites that primarily host images, allowing users to share, organize, store, or search for photos or other images Lifestyle Alternative Journals Online equivalents of supermarket tabloids and other fringe publications Business Job Search / Careers Sites about finding employment or employment services General News / Media Sites about the news, current events, contemporary issues, or the weather; includes online magazines whose topics do not fall under other categories Lifestyle Personals / Dating Sites that help visitors establish relationships, including sites that provide singles listings, matchmaking, or dating services General Translators / Cached Pages Online page translators or cached Web pages (used by search engines), which can be used to circumvent proxy servers and Web filtering systems General Reference General and specialized reference sites, including map, encyclopedia, dictionary, weather, how-to, and conversion sites Communications and Search Social Networking Sites devoted to personal expression or communication, linking people with similar interests Communications and Search Chat / Instant Messaging Sites that provide Web-based services or downloadable software for text-based instant messaging or chat Communications and Search Email Sites that provide email services, including portals used by companies for Web-based email Communications and Search Newsgroups / Forum Sites that offer access to Usenet or provide other newsgroup, forum, or bulletin board services Lifestyle Religion Sites about popular religions, their practices, or their places of worship Lifestyle Personal Sites Sites maintained by individuals about themselves or their interests; excludes personal pages in social networking sites, blog sites, or similar services Network Bandwidth Sharing Services Sites that enable sharing of files and other content Network Bandwidth Peer-to-peer Sites that provide information about or software for sharing and transferring files within a peer-to-peer (P2P) network Business Shopping Sites that sell goods or support the sales of goods that do not fall under other categories; excludes online auction or bidding sites Business Auctions Sites that serve as venues for selling or buying goods through bidding, including business sites that are being auctioned Business Real Estate Sites about real estate, including those that provide assistance selling, leasing, purchasing, or renting property Lifestyle Society / Lifestyle Sites that provide information about life or daily matters; excludes sites about entertainment, hobbies, sex, or sports, but includes sites about cosmetics or fashion Lifestyle Gun Clubs / Hunting Sites about gun clubs or similar groups; includes sites about hunting, war gaming, or paintball facilities Lifestyle Restaurants / Food Sites that list, review, discuss, advertise, or promote food, catering, dining services, cooking, or recipes Lifestyle Sports Sites about sports or other competitive physical activities; includes fan sites or sites that sell sports merchandise Lifestyle Travel Sites about travelling or travel destinations; includes travel booking and planning sites General Vehicles Sites about motorized transport, including customization, procurement of parts and actual vehicles, or repair services; excludes sites about military vehicles Lifestyle Humor Sites intended for humor Network Bandwidth Streaming Media / MP3 Sites that offer streaming video or audio content without radio or TV programming; sites that provide music or video downloads, such as MP3 or AVI files Network Bandwidth Ringtones / Mobile Phone Downloads Sites that provide content for mobile devices, including ringtones, games, or videos Network Bandwidth Software Downloads Sites dedicated to providing free, trial, or paid software downloads Network Bandwidth Pay to Surf Sites that compensate users who view certain Web sites, email messages, or advertisements or users who click links or respond to surveys Internet Security Potentially Malicious Software Sites that contain potentially harmful downloads Internet Security Spyware Sites with downloads that gather and transmit data from computers owned by unsuspecting users Internet Security Phishing Fraudulent sites that mimic legitimate sites to gather sensitive information, such as user names and passwords Internet Security Spam Sites whose addresses have been found in spam messages Internet Security Adware Sites with downloads that display advertisements or other promotional content; includes sites that install browser helper objects (BHOs) Internet Security Malware Accomplice Sites used by malicious programs, including sites used to host upgrades or store stolen information Internet Security Disease Vector Sites that directly or indirectly facilitate the distribution of malicious software or source code Communications and Search Coin Miners Scripts or executable files that perform actions related to cryptocurrency, such as coin mining. Internet Security Made for AdSense Sites that use scraped or copied content to pollute search engines with redundant and generally unwanted results Lifestyle For Kids Sites designed for children Internet Security Web Advertisements Sites dedicated to displaying advertisements, including sites used to display banner or popup ads Communications and Search Web Hosting Sites of organizations that provide top-level domains or Web hosting services General Untested Sites that have not been classified under a category Internet Security C&C Server Servers/Repositories that harbor command-and-control (C&C) servers and dropzones Internet Security Malicious Domain Domains that host malicious payloads; such domains cannot be reclassified. Internet Security Newly Observed Domain Domains that have not been classified by Trend Micro and were recently observed for the first time or recently became active, but are not necessarily newly registered, such as throwaway domains. Internet Security Scam Sites that attempt to defraud a person or group after first gaining their confidence, used in the classical sense of trust. They often play confidence tricks to exploit typical human characteristics such as greed, dishonesty, vanity, opportunism, lust, compassion, credulity, irresponsibility, desperation, and naivety. Internet Security Ransomware Sites that directly or indirectly facilitate the distribution of ransomware. General Miscellaneous Sites that have been tested and not been classified into the other categories. General Noteworthy Informational sites with notable content.