Every domain and URL in the Web Filtering Database is tagged with one or more of the 59 categories below. The taxonomy covers Web-based risks, adult and sensitive content, productivity, business, infrastructure, lifestyle and more — ready to drop into firewall, DNS, parental-control and secure-gateway policies.
Education teams use it for filtering for K-12 schools across 59 content categories, and compliance officers can map our 59 categories to CIPA requirements.
Malicious categories typically blocked by default in enterprise and consumer filtering policies.
Hosts that distribute malicious payloads, run restricted content pages, or have been flagged as untrustworthy by our content classification pipeline.
Category guideAnonymizing proxies, commercial VPN providers, and traffic-obfuscation services frequently restricted by enterprise and education policies.
Category guideRemote desktop, remote administration and screen-sharing products commonly abused to bypass perimeter security controls.
Link-shortening and redirection services that can mask the final destination of a URL, often used in restricted content campaigns.
Sites whose primary content promotes hateful, discriminatory or extremist views against groups of people.
Graphic depictions or glorification of violent acts, gore, terrorism, and related harmful content.
Category guideSale, trade, modification and instructional material covering firearms, explosives and weapons more broadly.
Category guidePages that advertise, sell or glorify controlled substances and drug-related paraphernalia.
Category guideAge-restricted content categories typically required for parental-control, K-12 and CIPA-compliant policies.
Sexually explicit material, pornography and adult entertainment sites. Always blocked in parental-control and school filters.
Category guideRetailers of lingerie, swimwear and intimate apparel. Often filtered in conservative or education environments.
Online casinos, sports-betting, poker rooms and lottery operators — frequently regulated at country level.
Category guideMarketing and sale of alcoholic beverages: liquor brands, breweries, wineries and distributors.
Category guideDating platforms, matchmaking services and adult-leaning romantic social networks.
Category guideCategories commonly restricted during work or study hours on corporate, education and ISP networks.
Platforms where users create profiles, follow one another and share public or semi-public posts.
Category guideVideo-game publishers, storefronts, gaming communities, esports and in-browser gaming sites.
Category guideAudio and video streaming services — movies, shows, music, live events, user-generated video.
Category guidePodcast directories, hosting platforms and individual audio shows.
Peer-to-peer file-sharing networks, torrent sites and related clients.
Category guideCloud drives, personal backup services and file-hosting platforms.
Legitimate business, finance and professional categories typically allowed for work-focused networks.
Corporate, consulting, management, B2B services and business-news websites.
Banks, investment firms, insurance brokers, financial data providers and fintech.
Category guideConsumer online-banking portals and transaction-level banking services.
Crypto exchanges, blockchain tooling, DeFi protocols, wallets and NFT marketplaces.
Job boards, career-advice platforms, hiring-related services and recruiter tools.
Ad networks, martech vendors and sites centered on digital advertising and promotion.
Category guideMulti-seller marketplaces, classified-ad boards and online auction platforms.
Property listings, real-estate agencies, rental marketplaces and property-investment sites.
Every category on this page is applied to the same classified map of the web, available as a REST API and as a downloadable on-premise dataset.
Messaging, community and collaboration categories where policy decisions vary widely by industry.
Webmail providers, instant-messaging platforms and consumer chat services.
Email guide Messaging guideDedicated discussion forums, Q&A platforms and topic-focused message boards.
Category guideUser-generated community platforms, local groups and niche online communities.
Independent blogs, personal homepages and individual opinion or diary content.
News outlets, journalism sites, magazines and professional media publications.
Category guidePolitical parties, campaigns, advocacy organizations and political commentary sites.
General-interest topics covering health, leisure, travel, sports and personal interests.
Medical information, clinical guidelines, wellness content and healthcare resources.
Category guideEducational portals, reference works, encyclopedias and study-aid platforms.
Category guideOnline courses, live webinars, MOOCs and professional-training platforms.
Scientific research, journals, popular-science and educational-science content.
Film, music, television, theatre, and general entertainment-focused websites.
Travel booking, airlines, tourism boards, travel agencies and destination guides.
Category guideRestaurant listings, reservation platforms, food-delivery services and dining guides.
Recipes, food blogs, beverage information and culinary hobbyist content.
Sports leagues, fitness, outdoor activities, athletic training and fan communities.
Pet care, adoption, animal welfare and wildlife-focused content.
Vehicle manufacturers, automotive services, dealerships and transportation networks.
Home improvement, interior design, gardening and DIY-focused sites.
Religious organizations, spiritual resources, faith-based communities and worship content.
Backbone-of-the-web categories — technology publishers, developer tools and hosting infrastructure.
Technology news, hardware and software reviews, programming content and IT resources.
Category guideAI assistants, LLM front-ends, agentic tools and AI-powered productivity interfaces.
Source-code repositories, CI/CD services, IDEs and developer-documentation sites.
SaaS tools, productivity apps and online utilities delivered through the browser.
Free software catalogs, open-source downloads and consumer application repositories.
General-purpose search engines and information-retrieval platforms.
Content-delivery networks, cloud hosting, managed infrastructure and edge-networking providers.
Category guideRegistered domains that currently show placeholder, parking or for-sale listings.
Civic, governmental and catch-all categories used for policy rules and fallback classification.
Government portals, public-policy sites, legal resources and official regulatory bodies.
Category guideArmed forces, defense contractors, military news and veteran-oriented resources.
Catch-all for legitimate sites that do not cleanly map to any of the other 58 categories. The 59th category ensures every domain gets a label.
The Web Filtering Database is available as a REST API and as a downloadable on-premise dataset covering up to 100 million domains, all tagged with the 59 categories on this page.
View Database Packages