Discover Art/Culture websites
Sites that nurture and promote cultural understanding of fine art including but not limited to sculpture, paintings and other visual art forms, literature, music, dance, ballet, and performance art and the venues or foundations that support, foster or house them such as museums, galleries, symphonies and the like. Sites that provide a learning environment or cultural awareness outside of the strictures of formalized education such as museums and planetariums are included under this heading.
Discover Auctions websites
Sites that support the offering and purchasing of goods between individuals. Does not include classified advertisements.
Discover Brokerage/Trading websites
Sites that provide or advertise trading of securities and management of investment assets (online or offline). Also includes insurance sites, as well as sites that offer financial investment strategies, quotes, and news.
Discover Business Applications websites
Sites with interactive, Web-based office, productivity, collaboration, and business applications including business enablement services. Excludes email, chat/IM, or other sites that have a specific content category.
Discover Business/Economy websites
Sites devoted to business firms, business information, economics, marketing, business management and entrepreneurship. This does not include sites that perform services that are defined in another category (such as Information Technology companies, or companies that sell travel services). Does not include shopping sites.
Discover Chat websites
Sites that provide chat, text messaging (SMS) or instant messaging capabilities or client downloads.

WhatsApp Messenger. Более 2 миллиардов человек в более чем 180 странах используют WhatsApp, чтобы всегда и везде оставаться на связи с друзьями и близкими. WhatsApp — это бесплатное мобильное приложение, которое предлагает простой, безопасный и надёжный способ обмена сообщениями и звонками пользователям по всему миру.
1.29B Visits
Discover Education websites
Sites that offer education information, distance learning, or trade school information or programs. Includes sites that are sponsored by schools, educational facilities, faculty, or alumni groups.
Discover Entertainment websites
Sites that provide information about or promote popular culture including but not limited to film, film critiques and discussions, film trailers, box office, television, home entertainment, music, comics, graphic novels, literary news, and reviews. This category also includes entertainment-oriented periodicals, interviews, fan clubs, celebrity gossip, and podcasts; and music and film charts.
Discover File Storage/Sharing websites
Sites and services that provide online file or note storage, file sharing, synchronization of files between devices and/or network-based data backup and restoration. These services may provide the means to upload, download, paste, organize, post and share documents, files, computer code, text, non-copyright-restricted videos, music and other electronically formatted information in virtual data storage. Does not include Office/Business Applications or Media Sharing.
Discover Financial Services websites
Sites that provide or advertise banking services, lending services, insurance services, financial information, or advice on a variety of fiscal topics including loans. Does not include sites that offer market information, brokerage or trading services, which are categorized in the Brokerage/Trading category.
Discover Games websites
Sites that support playing or downloading video games, computer games, or electronic games. Also includes sites that support or host online sweepstakes and giveaways.
Discover Government/Legal websites
Sites sponsored by or which provide information on government, government agencies and government services such as taxation and emergency services. Includes sites which discuss or explain laws of various governmental entities. Also includes sites that advertise legal services, lawyers for hire, adoption services, information about adoption, immigration information, and immigration services.

Official website of the National Institutes of Health (NIH). NIH is one of the world's foremost medical research centers. An agency of the U.S. Department of Health and Human Services, the NIH is the Federal focal point for health and medical research. The NIH website offers health information for the public, scientists, researchers, medical professionals, patients, educators,
262M Visits
Discover Health websites
Sites that provide advice and information on general health such as fitness and well-being, personal health, medical services, over-the-counter and prescription medications, health effects of both legal and illegal drug use, alternative and complementary therapies, medical information about ailments, dentistry, optometry, and general psychiatry. Also includes self-help and support organizations dedicated to a disease or health condition.

Official website of the National Institutes of Health (NIH). NIH is one of the world's foremost medical research centers. An agency of the U.S. Department of Health and Human Services, the NIH is the Federal focal point for health and medical research. The NIH website offers health information for the public, scientists, researchers, medical professionals, patients, educators,
262M Visits
Discover Informational websites
Sites that provide content that is informational in nature and does not provide a way to directly act upon the information (e.g., a site that provides lottery results, but does not sell lottery tickets). This category is always used in conjunction with another category appropriate to the subject matter (e.g., gambling).
Discover Job Search/Careers websites
Sites that provide assistance in finding employment, and tools for locating prospective employers.
Discover Media Sharing websites
Sites that allow sharing of media (e.g., photo sharing) and have a low risk of including objectionable content such as adult or pornographic material.
Discover Mixed Content websites
Sites with generally non-offensive content but that also have potentially objectionable content such as adult or pornographic material that is not organized so that it can be classified separately. Sites that explicitly exclude offensive, adult, and pornographic content are not included in this category.
Discover News/Media websites
Sites that primarily report information or comments on current events or contemporary issues of the day. Also includes news radio stations and news magazines. Does not include sites that can be rated in other categories.
Discover Newsgroups/Forums websites
Sites that primarily offer access to newsgroups, messaging or bulletin board systems, or group blogs where participants can post comments, hold discussions, or seek opinions or expertise on a variety of topics.

Reddit gives you the best of the internet in one place. Get a constantly updating feed of breaking news, fun stories, pics, memes, and videos just for you. Passionate about something niche? Reddit has thousands of vibrant communities with people that share your interests. Alternatively, find out what’s trending across all of Reddit on r/popular. Reddit is also anonymous so you can be yourself, with your Reddit profile and persona disconnected from your real-world identity.
1.37B Visits
Discover Peer To Peer (P2P) websites
Sites that distribute software to facilitate the direct exchange of files between users. P2P includes software that enables file search and sharing across a network without dependence on a central server.
Discover Personal Sites websites
Sites consisting primarily of user-generated content that serves as a vehicle for self-promotion on which a variety of personal experiences or interests are shared. These sites do not represent businesses, institutions or governmental entities although they may mention or be sponsored by such bodies. Content on these sites tends to be dynamic in nature. Content topic and tone may vary from benign to extreme or vacillate between the two as determined by the author. Reader comments may also contain mixed content.
Discover Piracy/Copyright Concerns websites
Sites that provide information or technology for cracking or pirating software or other protected intellectual property, and sites that distribute such media.
Discover Potentially Unwanted Software websites
Sites that are not malicious sources but that host software with undesirable behavior or cause undesirable browser behavior such as such as intrusive adware, adware servers used exclusively by intrusive adware, and browser hijackers.
Discover Radio/Audio Streams websites
Sites that provide streams or downloads of radio, music, or other audio content-typically more than 15 minutes in length.
Discover Real Estate websites
Sites that provide information on renting, buying, or selling real estate or properties. Also includes vacation property rentals such as time-shares and vacation condos.
Discover Reference websites
Sites containing personal, professional, or educational reference, including online dictionaries, maps, censuses, almanacs, library catalogues, genealogy-related sites and scientific information.
Discover Search Engines websites
Sites that support searching the Internet, indices, and directories.
Discover Shopping websites
Sites that provide or advertise the means to obtain goods or services. Includes sites that list prices or have a clear way to order merchandise and also includes retail shopping outlets, classified advertisements, price comparisons, hot deals, bargains, etc. Does not include sites that can be classified in other categories (such as Vehicles or Weapons).
Discover Social Network websites
Sites that enable people to connect with others to form an online community. Typically members describe themselves in personal Web page profiles and form interactive networks, linking them with other members based on common interests or acquaintances. Instant messaging, file sharing and Web logs (blogs) are common features of Social Networking sites. These sites may contain offensive material in the community-created content. This category may be used in conjunction with another category for more narrowly-focused social networking sites, such as professional networking sites or social networking sections of Personals/Dating sites.
Discover Software Downloads websites
Sites wholly dedicated to the download of software for any type of computer or computing device whether for payment or at no charge. Does not include sites or pages that offer a software download as a subset of their overall content.
Discover Sports/Recreation websites
Sites that promote or provide information about spectator sports or recreational activities. It does not include sites dedicated to hobbies such as gardening, collecting, board games, scrapbooking, quilting, etc.
Discover Streaming Media websites
Sites that provide streams or downloads of audio or video clips-typically less than 15 minutes or less in length. Also includes sites that provide downloaders and players for audio and video clips.
Discover Suspicious websites
Sites considered to have suspicious content and/or intent that poses an elevated security or privacy risk. This categorization is determined by analysis of web reputation factors. Also includes sites that are part of the Web and email spam ecosystem. If a site is determined to be clearly malicious or benign, it will be placed in a different category.
Discover Technology/Internet websites
Sites that sponsor or provide information, news, reviews, opinions and coverage of computing, computing devices and technology, consumer electronics, and general technology. Also includes sites of technology-related organizations and companies.
Discover Travel websites
Sites that promote or provide opportunity for travel planning, including finding and making travel reservations, sharing of travel experiences (pro or con) vehicle rentals, descriptions of travel destinations, or promotions for hotels/casinos or other travel related accommodations. Mass transit information including but not limited to posting of schedules/fares or any other public transportation-related data are also included in this category.
Discover TV/Video Streams websites
Sites that provide streams or downloads of television, movie, Webcam, or other video content-typically more than 15 minutes in length.
Discover Uncategorized websites
Sites that are not currently rated or that cannot be rated into any other category.
Discover Vehicles websites
Sites that provide information on or promote vehicles, boats, or aircraft, including sites that support online purchase of vehicles or parts.
Discover Web Ads/Analytics websites
Sites that provide online advertisements, banners, or the means to identify and market to existing or potential customers based on their browsing or online purchasing habits including but not limited to Web analytics sites such as visitor tracking and ranking sites. Includes social plugins and analytics that allow site visitors to share, vote for, or signal their appreciation of a site or its content (e.g. Facebook "Like" or Google "+1" plugins).
Discover Web Hosting websites
Sites of organizations that provide top-level domain pages, as well as web communities, blog hosting sites, and other hosting services.