Zscaler organizes URLs into a hierarchy of categories for granular filtering and policy creation. There are six predefined classes, which are then each divided into predefined super-categories, and then further into predefined categories, as depicted below.

The six predefined classes are:

You can stay at the class level or drill down further into super-categories and categories when using URL categories for rules. In addition to the predefined categories, you can create custom categories. Custom categories can be based on URLs or on keywords within the URLs or page content. You can also add custom URLs and keywords to a predefined URL category.

Bandwidth Loss

bandwidth loss
Super-Category
Entertainment/Recreation
Examples
Categories
Entertainment: Sites that provide information on or promote mass entertainment media such as theatre, amusement parks, music, comics, fan clubs, and so on.
www.hollywood.com, www.sydneyoperahouse.com
Music: Sites that promote music for entertainment purposes related to bands, orchestras, festivals, and so on.
www.mtv.com, www.billboard.com
Other Entertainment/Recreation: Other sites related to entertainment/recreation that are not included in the defined categories.

Radio Stations: Sites that offer streaming or downloadable radio programming.
www.shoutcast.com, www.class95.sg
Streaming Media: Sites that are related to or offer streaming or downloadable digital audio, video, and other media.
video.google.com, www.mp3.com
Television/Movies: Sites related to television programming or movies. 
tv.yahoo.com, www.movies.com
Super-category
News and Media
Examples

Sites that report information or commentary on current events or contemporary issues, including newspapers, news wire services, news magazines, and radio news stations.
www.cnn.com, www.asiaone.com

User-Defined

You may populate this category with sub-categories or URLs that you manually create.  


Business Use

Business Use
Super-Category
Business and Economy
Examples
Category
Classifieds: Sites that offer for sale or display advertisements for barter or sale of goods and services.  
www.st701.com, www.gumtree.com
Corporate Marketing: Sites that offer corporate and product information but do not sell products.
www.billabong.com, www.crocs.com
Finance: Sites that provide information related to financial investment and firms that offer financial services.    
www.hsbc.com, www.citibank.com
Other Business and Economy: Other sites related to business and economy that are not included in the defined categories.    

Professional Services: Sites that provide information about or are related to the sale and delivery of technical and professional services.
www.micematters.com, www.issworld.com
Super-Category
Education
Examples
Category
Continuing Education/Colleges: Sites related to institutions and colleges offering formal courses of advanced studies for adults.
www.duke.edu, www.qut.edu.au
History: Sites that offer a systematic recording of past events or analysis and commentary on causes and effects, motives, or connections relating to events.
www.history.com, www.hyperhistory.com
K-12: Sites related to the education of children.    
www.k12.com, www.edc.org
Other Education: Other sites related to education that are not included in the defined categories.    

Reference Sites: Sites that offers scholars and academics source documents and research assistance.    
en.wikipedia.org, www.dictionary.com
Science/Tech: Sites related to education in science and technology.
www.sciencemag.org, www.ietf.org
Super-Category
Information Technology   
Examples
Category
File Host: Sites that offer hosting, backup, and sharing of files on the Internet.
www.yousendit.com, www.rapidshare.com
Image Host: Sites that provide video or image hosting, linking, and/or sharing.
www.flickr.com, www.kodakgallery.com
Other Information Technology: Other sites related to information technology that are not included in the defined categories.   

Portals: Sites that offer multiple web-based services to assist a user's experience on the Internet.    
www.electronictheatre.co.uk, www.ptairsoft.org
Safe Search Engine: Sites that provide Internet search services geared specifically for families and children and prevent discovery of objectionable material.
kids.yahoo.com, www.ajkids.com
Shareware Download: Sites that are related to or offer downloading of legal software.
download.cnet.com, www.tucows.com
Translators: Sites that offer translation services for web pages, URLs, or other text strings.
translate.google.com, www.freetranslation.com
Web Banners: Sites that provide service links/banners/ads for websites.    
www.buysellads.com, www.fusionads.net
Web Host: Sites that offer web hosting services, as well as domain names and web space, to host end user web pages.
www.godaddy.com, www.dinohost.com
Web Search: Sites that offer search services for the Internet, indices, and directories.
www.google.com, www.yahoo.com
Super-Category
Job/Employment Search
Examples

Sites that provide employment services, assistance in finding employment, or tools for locating employers. www.monster.com, www.kellyservice

General Surfing

General Surfing
Super-Category
Government and Politics
Examples
Category
Government: Sites related to governments and their agencies or militaries.
www.usa.gov, www.gov.sg
Other Government and Politics: Other sites related to government and politics that are not included in the defined categories.

Politics: Sites related to, or sponsored by, organizations that seek to influence viewpoints, change or reform public policy, public opinion, or government practices.
www.nrsc.org,
www.pap.org.sg
Super-Category
Miscellaneous
Examples

Miscellaneous: Sites that have not yet been classified.

Other Miscellaneous: Other sites that are not included in the defined categories.

Super-Category
Travel
Examples

Sites related to travel planning, information, or activities, including reservation services, destination listings, and special event promotion. www.contiki.com,
www.singaporeair.com
Super-Category
Vehicle
Examples

Sites that provide information about or promote vehicles, or offer for purchase vehicle parts or maintenance. www.toyota.com,
www.volkswagen.com

Productivity Loss

prod loss
Super-Category
Games
Examples
Categories
Games: Sites associated with traditional board games, role-playing games, or game manufacturers, or that support playing or downloading electronic, video, computer, or online games. www.worldofwarcraft.com,
www.easports.com
Other Games: Other sites related to games that are not included in the defined categories.

Social Networking Games: Sites that reside on social networking sites and contain material that would otherwise merit categorization into the Games category.
www.facebook.com/FarmVille,
www.facebook.com/WSOP
Super-Category Health
Examples

Sites related to an individual’s physical and mental well-being.  www.who.int,
healthdiscovery.net
Super-Category Internet Communications
Examples
Categories Blogs: Sites related to online journals, diaries, or newsletters that express personal thoughts/opinions about Internet, social, or political issues.
www.blogger.com,
onlinejournalismblog.com
Discussion Forums: Sites related to Usenet, Usenet news, forums, newsgroups, or online bulletin board systems.
www.cellar.org,
www.thefootballforums.com
Internet Services: Sites related to or offering services that assist in Internet communication.
www.singnet.com.sg,
www.bigpond.com
Online Chat: Sites that offer access to, software for, or participation in any Internet chat forum. Chat is defined as any online conversation taking place in real-time.
webmessenger.msn.com,
webmessenger.yahoo.com
Other Internet Communications: Other sites related to internet communications that are not included in the defined categories.

Peer-to-Peer Site: Sites that provide client software to enable peer-to-peer file sharing and transfers.
www.filesAnywhere.com,
www.yousendit.com
Remote Access: Sites that provide information or software to enable authorized access to a desktop computer or private network from a remote location.
www.teamviewer.com,
www.logmein.com
Webmail: Sites that provide email accounts, free or otherwise. mail.google.com,
www.hotmail.com
Super-Category Religion
Examples
Categories Alt or New Age: Sites related to nontraditional or nonreligious spiritual belief systems, or related to the practice or advocacy of affecting events through
supernatural means.
www.nuforc.org,
www.artofplacement.com
Cult: Sites related to groups or movements whose membership is marked by zeal, passion, and obedience to a degree generally considered excessive by the mainstream. www.satanism101.com
Other Religion: Other sites related to religion that are not included in the defined categories.

Traditional Religion: Sites related to traditionally organized religious activities, participation, and belief.
www.chc.org.sg,
www.buddhanet.net
Super-Category Shopping and Auctions
Examples
Categories Online Auctions: Sites that offer participation in online auctions or support the offer and purchase of goods between individuals.
www.ebay.com,
www.onlineauction.com
Online Shopping: Sites that provide, or advertise ways to purchase products or services over the Internet or by telephone. www.amazon.com
Other Shopping and Auctions: Other sites related to shopping and auctions that are not included in the defined categories.
Real Estate: Sites that offer information or services related to buying, selling, renting, or financing property.
www.redas.com,
www.propnex.com
Super-Category Social and Family Issues
Examples
Categories Family Issues: Sites related to issues specific to the family such as divorce, adoption, infertility, domestic violence, and so on.
fatherhood.about.com,
childparenting.about.com
Other Social and Family Issues: Other sites related to social and family issues that are not included in the defined categories.

Social Issues: Sites related to issues generally considered to engender controversies, such as abortion, euthanasia, legalization of drugs, and so on. www.alterwords.com, www.birdsandbees.org
Super-Category Society and Lifestyle
Examples
Categories Alcohol and Tobacco: Sites related to the use of alcohol and tobacco products, excluding those that inform on the hazards of alcohol and tobacco. www.martell.com,
www.24hrcigarette.com
Alternate Lifestyle: Sites related to gay, lesbian, or bisexual orientation.
www.lambda.org
Art and Culture: Sites related to the mores, activities, organizations, and collective behavior of peoples that define various cultures around the world.
www.artandculture.com,
www.metmuseum.org
Dining and Restaurant: Sites that list, discuss, review, advertise, or promote dining and restaurants.
www.mcdonalds.com.sg,
www.hungrygowhere.com
Hobbies and Leisure: Sites related to hobbies and leisure, or pursuits or interests engaged in for pleasure and relaxation.
www.bigdamnfunny.com,
www.dizzydragon.com
Other Society and Lifestyle: Other sites related to society and lifestyle that are not included in the defined categories.

Social Networking: Sites that enable the creation of online communities or the facilitation of personal introductions, dating, and networking.
www.facebook.com,
www.friendster.com
Super-Category Special Interests/Social Organizations
Examples

Sites related to charitable organizations, community or environmental interest groups, or social advocacy. www.greenpeace.org,
www.care2.com
Super-Category Sports
Examples

Sites related to sports or recreation.
espn.go.com, www.nba.com

Privacy Risk

security risk
Super-Category
Security Examples
Category
Other Security: Other sites related to security that are not included in the defined categories.


Spyware/Adware: Sites that are known to distribute or contain code that displays unwanted advertisements or that gathers user information without the user’s knowledge.
www.spywareremove.com,
www.virusspy.com

Guidelines for Working with URL Categories

Following are some guidelines for URL categories:

  • You cannot add classes, or edit or delete the predefined classes.
  • Each class has super-categories. You cannot add or delete super-categories, but you can move them from one class to another for easier management. For example, your organization is in the entertainment field and your users frequent entertainment sites. You can move the Entertainment/Recreation super-category to another class, such as Business Use.
  • You can add custom categories to any super-category. You cannot delete a category that is actively used in a URL Filtering rule. To delete the category, first deselect it in the URL Filtering rule.
  • For the predefined categories, you can add URLs and keywords for web sites that the service did not automatically categorize, but which you believe should be included in that category (note that URL keywords are simply text strings found within the URL).
  • You can add URLs to both predefined and custom categories. When manually adding URLs, you can enter sub-domains (for example, mail.google.com) and re-categorize them differently than their parent domain.
  • If you manually add a URL to an existing super-category, category, or custom category, you can specify whether you want the URL also to retain its original parent category. For example, if you manually add www.google.com to a User-Defined category, you can specify whether you want google.com also to retain its original "Web Search" category.
  • You can add up to 25000 custom URLs (across all categories), and up to 48 custom categories. You can add up to 30 keywords per category, and up to 1,000 across all categories.
  • In URL filtering, File Type Control, SSL inspection, FTP and DLP policies, you can specify super-categories and select individual categories within super-categories as well.