The Barracuda Web Security Gateway URL filtering engine uses one of the most extensive content definition databases, covering some of the highest risk websites on the Internet.
WCS is a Barracuda Networks website categorization service that organizes domains 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. WCS provides very granular categorization so that you can create fine-grained browsing policies for content, and create granular reports on user browsing activity. Adult-related search engines, links, rankings, or portal sites. Sites containing sexually explicit content in an image-based or textual form. Any other form of adult/sexually-oriented material is also listed here. Sites containing sexually explicit content in an image-based. Any other form of adult/sexually oriented material is also listed here. Sites that allow bidding and selling of items and services. Does not include non-selling related advertising. Sites for law firms, attorneys, legal resources and materials, news, etc. Does not include government websites and legal information provided by those governments. Sites that provide online versions of magazines that cannot be easily classified in another category, or provide multiple online magazines that would individually be classified differently from one another. URLs that contain abusive and/or threatening messages towards other users or groups. Note that the URLs referring to brand new domains that are not yet categorized also tend to be malicious domains. Administrators must make careful choices to either allow or deny access to uncategorized domains based on their business concerns. Sites and IP addresses that are used to support sites and services that typically do not contain content, but are necessary for the function of various backend services. All search engines, meta-search engines, web directories such as yellow pages, business directories, etc., as well as internet portals (e.g. sites that contain links to numerous different content types such as News, Sports, Games, etc., all within the same site). Sites that provide public travel information. Sites that provide public transit services and/or information about those services. Sites that provide hotels and holiday rental accommodation information. Sites that sell or promote gun use. If sites contain guns, ammunition, and/or knives, they will be put into the general Weapons category. Sites that sell ammunition. If sites contain guns, ammunition, and/or knives, they will be put into the general Weapons category. Sites that sell or promote knives used as weapons or for hunting purposes. If sites contain guns, ammunition, and/or knives, they will be put into the general Weapons category.
Super Categories
Categories
Description
Adult Material
Adult Magazines or News
Sites containing sexually explicit content in an image based or textual form. Any other form of adult/sexually oriented material is also listed
here.
Adult Search or Links
Adult Porn
Dating
Sites that enable users to meet and interact with each other for the purposes of dating or making friends.
Fetish
Nudity
Sites containing bare images of the human body which are not suggestive or explicit.
Sexual Expression(text)
Sites that contains sexually suggestive, explicit or erotic content.
Sexual Services
Sex and sexually related information such as adult goods or merchandise, adult videos, adult game software, love hotels, brothels, escort services, models, etc.
Swimsuits & Lingerie
Sites containing revealing images such as swimsuits and modeling, but not nudity.
Adult Recreation
Fireworks
Sites that sell, promote, or enable people to use fireworks.
Gambling in General
All online and offline gambling, and sites that promote gambling skills and practice.
Lottery
Information related to lotteries issued by public institutions, such as state lotteries, and charity raffles.
Paintball
Sites that sell or promote paintball game or equipment. This includes air guns.
Smoking
Manufacturers and distributors of tobacco products, as well as websites that promote their use.
Drinking
Restaurants and bars that primarily serve alcoholic drinks as well as websites that promote the use of alcohol.
Alcoholic Products
Manufacturers and distributors of products that contain alcohol. This category also contains websites that promote the use of alcohol.
Business
Agriculture
Sites providing information about, or promoting, the agricultural industry. This includes farms, seeds, supplies, etc., as well as agricultural news.
Architecture
Architecture company websites, architectural news and review sites, sites supporting the architecture industry.
Business & Commercial
Sites that provide business-related overview, planning and strategy information.
Home & Family
Sites that deal with life issues and services including parenting, foster care, adoption, raising children, senior citizen related, etc.
Law
Sites for law firms, attorneys, legal resources and materials, news, etc. Does not include government websites and legal information provided by those governments.
Life Events
Sites that discuss or provide services for special life events such as marriage, divorce, bereavement, “coming of age” ceremonies (e.g. bar & bat mitzvah, shinbyu, Dawoodi Bohra, etc.).
Miscellaneous
Sites that provide business content, but cannot easily be classified in one of the other categories.
Mobile Operators
Sites that are owned by Mobile Operators. These sites include the
promotion, sale, or administration of mobile services.
Photography & Film
All photography companies, professional photographers, studios, filmmakers, cinematographers, and related companies, camera manufacturers, camera and equipment sales, and associated businesses.
Private IP Addresses
Internet Protocol addresses that are commonly used for home, office, and enterprise local area networks.
Side Business
Sites that provide information for careers.
Transport Services & Freight
Sites of companies focused on providing cargo, freight and package transportation services, information related to the cargo and freight industry, news, etc.
Unsupported URL
Malformed URLs that are not valid and cannot resolve to a web server. For example,
google.com google
would be considered an unsupported URL
Commerce & Shopping
Auctions
Career Advancement
Sites that provide information for careers and side business information.
Financial Products
All aspects of personal and corporate finance are included here. Sites that provide price comparisons between financial products, and sites that report or comment on financial matters.
Insurance
Businesses and commercial organizations that provide insurance, insurance information, and so forth, as well as sites that provide information related to insurance, the insurance industry, etc.
IT Online Shopping
Any site that meets the following criteria is listed here, especially IT products. Sites that offer goods for sale, represent a non-online retailer, provides comparisons between goods, preferential purchase schemes.
Market Rates
All aspects of personal and corporate finance are included here. Sites that provide price comparisons between financial products, and sites that report or comment on financial matters.
Online Trading
Sites that discuss, promote, or enable the user to trade online.
Real Estate
Sites that provide residential and commercial property sales and rental information, listings and services.
Shopping or Retail
Sites or order pages from which it is possible to purchase various products. Also includes websites of brick-and-mortar shops.
Sweepstakes or Prizes
Information and sites concerning online or offline competition, money, or prizes that can be won by participants.
Cryptocurrency
Sites that enable, distribute, trade, mine, or promote cryptocurrencies.
Cultural
Weddings or Matrimony
Information and sites concerning services offered by matchmaking agencies designed to introduce members of the opposite sex for the purpose of marriage.
Local Communities
Education
Education
Colleges, universities, primary and secondary schools are all included here. Online educational resources, such as exam syllabuses and example questions, are also included. Support organizations such as admissions bodies and research councils.
eLearning
Includes online learning products, technologies, and services that promote online learning. Sites that are not associated with traditional education (e.g. grade schools, high schools, college/university) as described in the Education category, but provide online learning services.
Reference
Online encyclopedias, dictionaries, thesauruses, atlases and other information resources available for research purposes all belong to this category.
Science
Sites focused on the various disciplines of science, research papers, companies and government agencies focused on scientific research and development.
Sex Education
Sites that discuss sex and sexuality in an informative and non-voyeuristic way. Topics that fall under this category include: education about human reproduction and contraception, advice on preventing infection from sexual diseases such as HIV, and advice to the LGB communities on sexual health matters.
Entertainment
Art and Cultural Events
Sites that promote or provide information about the Arts. These can include art galleries, art instruction, and art information, theater, symphonies, orchestras, operas, etc.
Books or eBooks
Sites promoting printed and eBook publications, as well as sites distributing these publications.
Costume Play or Enjoyment
Sites containing costume play content.
Dining or Gourmet
All sites relating to restaurants (whether eat-in or takeaway) and pubs/bars. All recipes and cuisine related sites are listed in this category. Farms and other foodstuff manufacturers.
Downloads
Any site whose primary function is to allow users to download media content except computer programs and mobile apps. This includes computer wallpaper, icons, fonts, etc.
Entertainer or Celebrity
Sites that provide information about entertainers and famous people.
Entertainment, Venues or Activities
Cinema, live entertainment, entertainment venues, social venues, meeting places, party/event venues, amusement parks, comedy clubs, etc.
Fandom
Online resources based on interest in a popular entity in pop culture. These entities are usually fictional characters, fictional settings, performers, artists, movies, or television shows.
Games
Information about the sale of game software and hardware, game downloads, game cheat codes, or games in general.
Horoscope, Astrology, or Fortune Telling
Sites that provide, or promote, horoscopes, fortune telling, astrology, etc.
Museums & History
Sites promoting museums, providing virtual online museums, historical information ,historical societies, and related clubs, etc.
Music
Sites that provide downloadable music data, music, and movie-related music.
Online games
All sites relating to video, computer or online games. All sites that support gaming through hosting online services, cheat information, general advice etc.
Online Magazines
Pets or Veterinarian
Websites for veterinarians, veterinarian clinics, animal adoption agencies, pet care, products and services for pets, information about pets, and news about pets.
Professional Sports
Professional sport websites, except those related to gambling.
Recreation & Hobbies
This category covers all activities or interests, other than sports, that someone might pursue for their own pleasure and not as a main occupation. This includes clubs and groups that pursue or meet for specific interests.
Social Networks in General
This category contains social networking sites (SNS) focused on both personal and professional services that are not contained within other categories with more granular controls.
Society & Culture
Social organizations and cultural sites that are not related to local communities, business or philanthropy. These sites include societal and cultural views and create awareness about topics related to heritage, activism, and history in various ethnicities, countries or regions.
Sports in general
All sport websites - whether media-related or fan-related - are placed in this category, except those related to gambling.
Streaming Media
Any site whose primary function is to allow users to watch streaming media.
Health & Medicine
Abortion
Sites that refer to abortion information, legal issues, and organizations.
Child Safety and Government Help Lines
Websites that assist children, youth, and families seeking help. These sites include helplines to promote well-being, and hotlines to report cases of neglect or abuse.
Medication
Sites offering drugs (OTC or Prescription drugs) or common medicines, natural products, prescription medications, etc.
Marijuana
Sites offering information, discussion, and/or resale of marijuana and associated products and/or services.
Health
All sites related to personal health, hospitals, clinics, legally prescribed medication and related services.
Self Help
Websites for self help including mental health, spiritual well-being, life coaching, or wellness. Sites dedicated to job and career development are categorized as Career Advancement.
CBD Hemp Products
Websites that sell CBD or hemp products without THC and do not promote marijuana use. Example: CBD oil.
Illegal/Improper
Child Abuse
Sites or images that include child pornography or abuse. This category is not entirely inclusive of all child abuse sites and may contain adult pornography.
Cyberbullying
Grotesque
It is not easy to define exactly what is offensive or tasteless. Sites included are not pornographic or violent, rather, more oriented towards content unsuitable for school children to view or that an employer would be uncomfortable with their staff accessing.
Hate or Slander
Sites promoting aggressive, degrading, or abusive opinions about any section of the population that could be identified by race, religion, gender, age, nationality, physical disability, economic situation, sexual preferences or any other lifestyle choice.
Illegal Activities
Sites that contain instructions, recipes, or advice on creating illegal items, such as explosives, or offer them for sale. Sites that give instruction on, advice about or promote of illegal acts.
Illegal Drugs
Sites that sell illegal/controlled substances, promote substance abuse, or sell related paraphernalia.
Self harm
Sites that contain examples or promotion of self-harm. This includes suicide, N/A cutting, and advocacy of eating disorders or euthanasia.
News & Information
Automotive
Vehicle manufacturers, dealers and servicing are all covered by this category. Sites that allow traders or the general public to buy or sell vehicles. Clubs for specific manufacturers/models are applicable, as are discussion groups.
Bulletin Boards
Sites offering access to Usenet newsgroups or similar services, or any other discussion forum that doesn't fit well in another category.
E-Mail Subscriptions
Sites that allow users to register and cancel e-mail subscriptions, or provide mailing list services.
Government
All central and local government websites are applicable, as are related bodies and agencies.
IT Bulletin Boards
Sites offering access to PC newsgroups or similar services for IT, or any other discussion forum that doesn't fit well in another category.
Military
Sites belonging to official military organizations or containing information relevant to their activities.
News
Sites that report and deliver news, of interest to the general public, such as online news sites, printed or online newspapers, and current affairs sites (not focused exclusively on presenting entertainer news/gossip, etc.). Sites focused on specific industry news (e.g. finance, travel, health, etc.) are listed in those specific categories. Sites focused on providing news, information, and/or gossip about celebrities and entertainers are listed under Entertainment.
Politics
Sites that provide political information.
Popular Topics
Information concerning matters and affairs that rapidly gain public attention.
Special Events
Information concerning special events.
Violence or Suicide
Any site that displays or promotes content related to violence against humans or animals is placed in this category, as are sites that advocate any means of harming oneself such as self-mutilation or euthanasia.
Online Communication
Instant Messages
Services for downloading instant message software and other related information as well as client based instant messaging.
Internet Telephony
All sites that offer internet telephony/VoIP products and services.
Web based chat
Web-based chatrooms.
Peer-to-Peer or Torrents
All sites that facilitate the sharing of files using P2P software are placed in this category. This includes, but is not restricted to, sites that host P2P software and sites that allow users to search for files that can be downloaded using P2P software.
Piracy & Copyright Theft
Sites that are clearly distributing copyrighted material in violation of the copyrights.
SMS & Mobile Telephony Services
This category is used for sites that allow the creation or sending of SMS text messages. Sites that sell ringtones, games, videos, or other downloadable content.
Web based Mail
Any site offering web-based email services is placed in this category.
Web conferencing
Online conferencing and collaboration services, including web meetings, webinars, and webcasts.
Other
Uncategorized
Some domains are very new, and Barracuda Networks does not have enough information to categorize them at this time. When users visit these new domains, Barracuda Networks automatically initiates an internal work flow to categorize them.
Security
Advertisements or Banners
All advertising is placed in this category.
BOT Phone Home
Sites that are used by malware to receive information from the malware.
Botnets
Sites that are landing pages for botnets or are infected by botnets.
Content Delivery Networks & Infrastructure
Sites including CDN (Content Delivery Networks) or sites or hosts/servers that provide back end services or functions for sites that make the internet or network function. These can include DNS, gateways, and APIs.
Doh Dot
DNS over HTTPS/TLS sites and IP addresses that are used to bypass filtering.
Hacking or Cracking
Resources for the illegal or questionable use of computer hardware or software are included here. Sites that describe how to gain unauthorized access to systems and that distribute copyrighted material that has been cracked to bypass licensing.
Infected Sites
Sites that are infected with a virus or distribute viruses.
Keyloggers
Sites that distribute or promote the use of keyloggers.
Malware
Sites that may contain malware or promote the distribution of malware. These sites may be infected by a virus.
Mobile Malware
Mobile sites that include mobile malware distribution or that can infect your mobile device.
Newly Registered Domains
Sites that have been newly registered within the last 30 days and have not already been categorized into another category.
Phishing Sites
Sites that used in phishing attacks.
Remote Proxies
Any site that operates as a web proxy, allows access to software that can bypass web filtering, or offers guidance on how web filtering can be avoided is listed in this category.
Remote Desktop Control
Sites that enable or distribute remote desktop control software or services.
SPAM
URLs that typically are contained in spam messages and are associated with mischievous or unsolicited efforts.
Spyware
Sites hosting software that attempts to get hold of personal or secret information without the user's knowledge.
Tracking Sites
Sites or backend services that are dedicated to tracking user behavior or usage.
VPN
An encrypted connection over the Internet from a computer to a network. VPN sites provide levels of privacy and anonymity with speed improvements.
Social Media
Facebook
This category contains social networking sites (SNS) focused on both personal and professional services that are not contained within other categories with more granular controls.
LinkedIn
LinkedIn social networking site.
Twitter
Twitter social networking site.
TikTok
TikTok social networking sites.
YouTube
YouTube social networking and streaming media site.
Instagram
Instagram social networking and messaging site.
Tumblr
Tumblr social networking and media sharing site.
Pinterest
Pinterest social networking site.
Ask.fm
Ask.fm site.
WordPress
WordPress site.
Society & Lifestyle
Advocacy in general
General information provided by webmasters to promote their opinion on a subject or topic.
Associations/Trade Groups/Unions
Professional associations, trade groups, and unions websites, and sites promoting these groups.
Philanthropy & Non-Profit Organizations
Sites that are, or provide services for, charities, non-profit organizations, foundations, trusts, fundraising events for non-profit and philanthropy organizations, and seeking donations.
Recycling/Environment
Sites that promote or provide information or services related to the environment, recycling and reuse of resources.
Personal Web Pages/Blogs
Any site that hosts personal pages created by an individual to contain content of a personal nature rather than a company, organization, institution, and so on. This category also contains personal blogs.
Fashion & Beauty
These sites are related to the Fashion and Beauty industry. Pages with models, clothing, and the discussion of current trends in fashion are found here.
Employment
All employment agencies, recruitment consultancies and headhunters, contractors, and agencies assisting anyone seeking employment are placed here. All sites that allow job vacancies to be posted, offer career advice, describe how to get through interviews or prepare a CV/resume. Includes Human Resource services, outsourcing, training, and technology related to HR.
Fitness
Sites that primarily promote, discuss, or enable fitness. These include gyms, studios, on-demand, personal trainers, and information about fitness.
Kids Sites
Sites that are safe for or of interest to kids. Kids sites may include games, educational portals, multimedia, and other sites that are of interest to children.
Home-garden
S ites related to renovation, maintenance and overall home projects. In addition, sites that discuss, educate, plan, or are related to gardening.
Occult
Information concerning supernatural phenomena that cannot be scientifically explained or measured.
Religions
Sites that relate to religion except for the traditional religions.
Traditional Religions
All sites that relate to traditional religious belief or skepticism.
Technology
Computing & Internet
All sites related to computer hardware and software - including sales. News and current trends regarding the computing industry or internet are also applicable. Professional bodies within the IT industry are included.
DDNS
Sites that provide Dynamic DNS service are listed here.
Emoticons
Sites that sell or provide emoticons.
Hosting Sites
Sites that provide hosting services for websites.
Infrastructure backend services
Mobile App Stores
Sites that sell applications for mobile consumption.
Mobile Apps & Publishers
Any site whose primary function is to allow users to download mobile apps and/or a company prompting their mobile app products. This does not include Mobile App markets that provide a wide range of mobile apps from two or more vendors.
No Content
Active domains that return no content or no visible content. Does not include sites that are categorized as parked domains.
Parked Domains
Place holders for sites that have not been created yet or parked domains.
Photo Search & Photo Sharing Sites
Photo search and sharing sites that can include social aspects for clubs or other organizations to share information including schedules and forums. This category can also include image hosting sites.
Program Downloads
Any site whose primary function is to allow users to download computer programs (e.g. for PCs and Macintosh computers). This does not include Mobile App markets, unless the site provides both computer and mobile apps.
Ringtones
Sites that sell or provide ringtones.
Search Engines & Portals
Search Engine Caches
Sites that aggregate disparate information or allow users to search across large amounts of data.
Storage Services
Sites that provide hosting for storage services.
Translators
All sites that translate a web page from one language to another, or that transform the text contained within a web page.
Travel
Public Agency Tourism
Public Transit
Accommodations
Travel & Tourism
Sites related to the following travel topics: listed travel agents, travel advice, timetable information, and car hire.
Violence & Weapons
Weapons
Any site that sells weapons or ammunition or advocates the use of weapons. Sites of weapons manufacturers.
Terrorism or Extremists
Any site that promotes, instructs, or advocates terrorism or extremism.
Guns
Ammunition
Knives