The websites in the Barracuda Networks database are organized into content categories (subcategories) which are grouped below by supercategories. When you create rules that block categories of websites, you can choose a supercategory to block, or you can drill down and block websites at the subcategory level.
Dynamic Site Categorization with the Barracuda WCS
With the Barracuda Web Security Gateway version 9.1 and above, dynamic website categorization is provided by the Barracuda Web Categorization Service (WCS) in the Barracuda Cloud. The Barracuda Content Definition database (CFDEF) contains over 15 million categorized sites and is stored in the cloud. For best performance, only the top 2 million of those sites are downloaded on a regular basis to each Barracuda Web Security Gateway. If a user visits a website outside of that 2 million, then the Barracuda Web Security Gateway simply queries the WCS in the cloud for the category. The WCS service then does one of two things:
- Returns the category to the Barracuda Web Security Gateway based on a lookup into the Barracuda CFDEF database in the Barracuda Cloud
- Deploys web crawlers to scour the site and analyze content text and images to determine the category the site belongs to. The Barracuda WCS then passes that information to the Barracuda Web Security Gateway, which stores this categorization in a local cache for later use. This categorization also goes into the CFDEF database so that a human can analyze the results and verify that the categorization is correct. This enables Barracuda to constantly improve on the learning of the WCS service, thereby improving the accuracy of this process.
Websites delivering content that can use large amounts of network resources.
|Streaming Media||Websites that provide streaming audio and video, or software and tools for streaming media.|
|Websites that provide streaming radio or TV.|
|Advertisements & Popups||Websites that host or serve advertisements or provide software that serves advertisements.|
|Media Downloads||Websites that provide downloads of music and video content in any format.|
|Media Sharing||Websites that allow posting and sharing of music and video content in any format.|
Websites that contain business information or facilitate commercial transactions.
Auctions & Classifieds
Websites that allow bidding and selling of items and services. Does not include non-selling related advertising.
Websites that provide business-related overview, planning and strategy information.
|Finance & Investment||Websites that provide financial information or access to online banking.|
|Real Estate||Websites that provide residential and commercial property sales and rental information, listings and services.|
|Shopping||Websites that sell goods and services, but not marketing or ordering websites for single products.|
|Stock Trading||Websites that allow monitoring, purchase, or sale of stocks.|
Websites that let users communicate through web browsers.
|Chat||Websites that provide Web-based messaging and chat rooms, including IRC and social networking chat functions.|
|Peer-to-Peer||Websites that distribute file sharing software or allow the exchange of files between users.|
|Web-based Email||Websites that enable sending, reading and archiving of email.|
|Instant Messaging||Websites that provide instant messaging software such as instant messaging clients or chat clients that are not Web-based.|
|Messaging||Websites that allow users to send and receive messages, e.g. SMS,MMS, voice mail, or FAX.|
|Mobile Communications||Websites that provide support information for mobile communication devices.|
|Online Meetings||Websites that enable multiple users to interact transparently with each other through messaging, audio or video connections.|
|Web-based Telephony||Websites that enable voice communication over the Web.|
Websites that provide searching, general news and information, including business content.
Education & Reference
|Websites that provide academic information about schools or education related topics.|
|Forums & Newsgroups||Websites containing user-generated Web logs, discussion forums or wikis.|
Government & Legal
|Websites maintained by domestic and foreign government and military agencies.|
|Health & Medicine||Websites that provide health and wellness material or information about health products and service providers.|
|History||Websites that provide historical content.|
|Job Search & Career Development||Websites that enable users to search for job openings and career opportunities, either with specific companies or job boards.|
|Motor Vehicles||Websites containing information and marketing for cars, auto parts and services.|
|Websites that contain general news information on a local, national and international level.|
|Websites for groups that promote or defend specific causes.|
|Websites that include content related to spirituality, religion, and philosophy.|
|Moderated Forums||Websites monitored by an authority who can prevent posting of inappropriate material.|
|Political Issues||Websites that contain opinion and political information, groups and discussions.|
|Professional Networking||The subset of social networking websites which includes content intended exclusively for businesses or professionals.|
|Public Information||Websites allowing search and access of the public records of people or organizations.|
|Technical/Business Forums||Websites which allow discussions or posting of user-generated content related to business or technical development.|
|Usenet News||Websites providing access to Usenet news groups or other bulletin boards.|
Entertainment and personal websites that are normally not business-related.
|Marketing & Merchandising||Websites that provide information about products and services not available on the Web.|
|Blogs & Wikis||Websites allowing users to post content, edit and re-post frequently.|
|Arts & Society & Culture||Websites that display art galleries, information about artists and ethnic and cultural heritage.|
|Comics & Humor & Jokes||Websites containing comical or funny content.|
|Websites providing information on theater arts, movies, concerts, tv, radio and other amusements, or about celebrities of those venues.|
|Food & Dining||Websites with information, reviews, and online ordering for restaurants, bars, and catering.|
|Game Playing & Game Media||Websites that provide video game information or enable the online playing of games.|
|Hobbies & Recreation||Websites dedicated to recreational activities and hobbies, or organizations and businesses dedicated to recreation, such as amusement parks.|
|Kids Sites||Websites that are family-oriented and geared toward children.|
|Personals & Dating||Websites that enable users to meet and interact with each other for the purposes of dating or making friends.|
|Social Networking||Websites that enable friends to interact and share information, but not for the purposes of dating.|
|Sports||Websites with information and news about amateur and professional sports.|
|Travel||Websites that provide information about travel destinations or allow online booking of travel plans.|
|Digital Cards||Websites that enable the sending and receiving of digital postcards and greeting cards.|
|Fashion & Beauty||Websites that provide information or products related to fashion and beauty.|
|Hosted Personal Pages||Websites which allow users to design and post personal websites.|
Users may be committing crimes or exposing the organization to legal liability with these sites.
|Criminal Activity||Websites that provide information on how to commit illegal activities, perpetrate scams or commit fraud.|
|Illegal Drugs||Websites that provide information on the manufacturing or selling of illegal drugs or prescription drugs obtained illegally.|
|Illegal Software||Websites that provide information about or downloads of pirated software.|
|Academic Cheating||Websites that advocate or assist plagiarism or provide or sell questionable educational material.|
Websites that are intended for mature or adult users only.
|Text/Audio Only||Websites that contain text or audio only, but no pictures.|
|Adult Content||These websites include content intended for legitimate reproductive science and sexual development educational material.|
|Alcohol & Tobacco||Websites that promote or sell alcoholic beverages or tobacco products.|
|Gambling||Websites that provide gambling odds and information or allow online betting.|
|Intimate Apparel & Swimwear||Websites containing revealing images such as swimsuits and modeling, but not nudity.|
|Intolerance & Hate||Websites encouraging bigotry or discrimination.|
|Pornography||Any website that contains sexually suggestive, explicit or erotic content.|
|Tasteless & Offensive||Websites portraying horror or perverse content.|
Violence & Terrorism
|Websites encouraging, instructing, or portraying extreme violence to people or property.|
|Websites that contain information about making, buying, or obtaining any sort of weapons.|
|Extremely Offensive||Websites containing content that is shocking, gory, perverse, or horrific in nature.|
|Gambling Related||Websites providing information or promoting services, techniques or accessories related to gambling.|
|Game/Cartoon Violence||Websites containing graphically violent animated content.|
|Historical Opinion||Websites dedicated to subjective analysis of historical events, especially partisan or agenda-driven analysis.|
|Incidental Nudity||Websites which include nude images because they are part of a broader category of art or education.|
|Websites containing bare images of the human body which are not suggestive or explicit.|
Websites which contain excessive use of profanity or obscenities.
Websites that are security risks or sources of malware, or that allow users to circumvent policies.
Websites that contain instructions and information for how to commit fraud or steal information through computer security vulnerabilities.
|Phishing & Fraud||Websites that are known to be distributed as links in phishing emails.|
|Websites that enable users to hide their browsing destinations, IP address, or username to avoid detection and bypass Web filters.|
|Websites delivering unwanted or unsolicited electronic messages.|
|Websites that are accessed from spam message clicks, which distribute programs to gather user information, or covertly send information to third party websites.|
|Proxy Utilities||Websites providing users with resources to help them avoid detection or bypass Web filters.|
|Information Security||Websites that provide information about protecting personal or business data.|
|Malicious Sites||Websites that provide or display content which intends harm to users or their computer systems.|
|Suspicious Sites||Suspect websites whose malicious intent cannot be confirmed.|
Websites that allow users to access search engines, portals and various technologies.
|Computing & Technology||Websites that provide technical support information, but not of a security nature.|
|Content Server||Includes domains that host websites of other types and are often sources of security threats.|
|Downloads||Websites that distribute copies of free and shared software.|
For sale or expired websites that display links or advertisements.
|Visual Search||Websites that provide image searching and matching technology.|
|Search Engines & Portals||Websites that aggregate disparate information or allow users to search across large amounts of data.|
|Software/Hardware||Websites that provide access to software or hardware technology.|
|Interactive Web Applications||Websites that provide access to groupware or interactive conference rooms.|
|Online Services||Websites that provide access to Web-based services.|
|Websites that allow the uploading of files and backups for remote data storage.|
|Remote Access||Websites that provide access to resources from a remote locations.|
|Resource Sharing||Websites that allow posting and sharing of resources and downloads to a network of people.|
|Websites that provide information on technical details of technologies.|
|Websites that provide translation services.|
|Websites that automatically forward the user from the requested URL to another URL.|