The Website Categorization API classifies domains and URLs using the IAB Content Taxonomy 3.0 (703 hierarchical categories with official IAB Tech Lab IDs, across 36 Tier-1 groups and up to 4 tiers deep), the previous-generation IAB v2 taxonomy (699 category paths), and a 58-category web content filtering taxonomy used for DNS filtering, secure web gateways, and network security. Every filtering category is mapped to its closest IAB 3.0 category. All reference tables on this page are free to download as JSON and CSV; the classified URL databases built on them (up to 102M domains) are commercial products.
Free to use with attribution to websitecategorizationapi.com. Stable URLs — safe to fetch programmatically.
The IAB Content Taxonomy is the advertising-industry standard for describing website content, used for
contextual targeting, brand safety, and audience analytics. Version 3.0 is the current IAB Tech Lab
standard: 703 categories across 36 Tier-1 groups, up to 4 tiers deep,
each with an official unique ID. The classifier returns hierarchical paths such as
Automotive > Auto Type > Luxury Cars. The API also supports the previous-generation
IAB v2 taxonomy (699 paths, downloadable above).
| Tier-1 group | Categories in group | Example Tier-2 categories |
|---|---|---|
| Attractions | 12 | Amusement and Theme Parks, Bars & Restaurants, Casinos & Gambling, Historic Site and Landmark Tours, Malls & Shopping Centers |
| Automotive | 41 | Auto Body Styles, Auto Buying and Selling, Auto Insurance, Auto Parts, Auto Recalls |
| Books and Literature | 5 | Art and Photography, Comics and Graphic Novels, Fiction, Poetry |
| Business and Finance | 71 | Business, Economy, Industries |
| Careers | 9 | Apprenticeships, Career Advice, Career Planning, Job Search, Remote Working |
| Technology & Computing | 47 | Artificial Intelligence, Augmented Reality, Computing, Consumer Electronics, Robotics |
| Crime | 1 | |
| Disasters | 1 | |
| Education | 18 | Adult Education, College Education, Early Childhood Education, Educational Assessment, Homeschooling |
| Entertainment | 37 | Movies, Music, Television |
| Events | 4 | Awards Shows, Business Expos & Conferences, Fan Conventions |
| Family and Relationships | 15 | Bereavement, Dating, Divorce, Eldercare, Marriage and Civil Unions |
| Fine Art | 9 | Costume, Dance, Design, Digital Arts, Fine Art Photography |
| Food & Drink | 13 | Alcoholic Beverages, Barbecues and Grilling, Cooking, Desserts and Baking, Dining Out |
| Genres | 30 | Nature, Action/Adventure, Animation & Anime, Biographies, Comedy |
| Healthy Living | 16 | Children's Health, Fitness and Exercise, Men's Health, Nutrition, Senior Health |
| Hobbies & Interests | 35 | Antiquing and Antiques, Arts and Crafts, Beekeeping, Birdwatching, Cigars |
| Holidays | 2 | National & Civic Holidays |
| Home & Garden | 12 | Gardening, Home Appliances, Home Entertaining, Home Improvement, Home Security |
| Law | 1 | |
| Medical Health | 38 | Cosmetic Medical Services, Diseases and Conditions, Medical Tests, Pharmaceutical Drugs, Surgery |
| Personal Celebrations & Life Events | 11 | Anniversary, Baby Shower, Bachelor Party, Bachelorette Party, Birth |
| Personal Finance | 31 | Consumer Banking, Financial Assistance, Financial Planning, Frugal Living, Home Utilities |
| Pets | 10 | Birds, Cats, Dogs, Fish and Aquariums, Large Animals |
| Politics | 4 | Civic affairs, Elections, Political Issues & policy |
| Pop Culture | 9 | Celebrity Deaths, Celebrity Families, Celebrity Homes, Celebrity Pregnancy, Celebrity Relationships |
| Real Estate | 12 | Apartments, Developmental Sites, Hotel Properties, Houses, Industrial Property |
| Religion & Spirituality | 11 | Agnosticism, Astrology, Atheism, Buddhism, Christianity |
| Science | 10 | Biological Sciences, Chemistry, Environment, Genetics, Geography |
| Sensitive Topics | 12 | Adult & Explicit Sexual Content, Arms & Ammunition, Crime & Harmful Acts to Individuals, Society & Human Right Violations, Death, Injury, or Military Conflict, Debated Sensitive Social Issues |
| Shopping | 11 | Children's Games and Toys, Coupons and Discounts, Flower Shopping, Gifts and Greetings Cards, Grocery Shopping |
| Sports | 69 | American Football, Australian Rules Football, Auto Racing, Badminton, Baseball |
| Style & Fashion | 44 | Beauty, Body Art, Children's Clothing, Designer Clothing, Fashion Trends |
| Travel | 27 | Travel Accessories, Travel Locations, Travel Preparation and Advice, Travel Type |
| Video Gaming | 24 | Console Games, eSports, Mobile Games, PC Games, Video Game Genres |
| War and Conflicts | 1 |
| IAB ID | Tier 1 | Tier 2 | Tier 3 | Tier 4 |
|---|---|---|---|---|
| 150 | Attractions | |||
| 151 | Attractions | Amusement and Theme Parks | ||
| 179 | Attractions | Bars & Restaurants | ||
| 181 | Attractions | Casinos & Gambling | ||
| 153 | Attractions | Historic Site and Landmark Tours | ||
| 154 | Attractions | Malls & Shopping Centers | ||
| 155 | Attractions | Museums & Galleries | ||
| 158 | Attractions | Nightclubs | ||
| 159 | Attractions | Outdoor Activities | ||
| 160 | Attractions | Parks & Nature | ||
| 177 | Attractions | Theater Venues | ||
| 178 | Attractions | Zoos & Aquariums | ||
| 1 | Automotive | |||
| 2 | Automotive | Auto Body Styles | ||
| 3 | Automotive | Auto Body Styles | Commercial Trucks | |
| 8 | Automotive | Auto Body Styles | Convertible | |
| 9 | Automotive | Auto Body Styles | Coupe | |
| 10 | Automotive | Auto Body Styles | Crossover | |
| 11 | Automotive | Auto Body Styles | Hatchback | |
| 12 | Automotive | Auto Body Styles | Microcar | |
| 13 | Automotive | Auto Body Styles | Minivan | |
| 14 | Automotive | Auto Body Styles | Off-Road Vehicles | |
| 15 | Automotive | Auto Body Styles | Pickup Trucks | |
| 4 | Automotive | Auto Body Styles | Sedan | |
| 5 | Automotive | Auto Body Styles | Station Wagon | |
| 6 | Automotive | Auto Body Styles | SUV | |
| 7 | Automotive | Auto Body Styles | Van | |
| 30 | Automotive | Auto Buying and Selling | ||
| 31 | Automotive | Auto Insurance | ||
| 32 | Automotive | Auto Parts | ||
| 33 | Automotive | Auto Recalls | ||
| 41 | Automotive | Auto Rentals | ||
| 34 | Automotive | Auto Repair | ||
| 35 | Automotive | Auto Safety | ||
| 36 | Automotive | Auto Shows | ||
| 37 | Automotive | Auto Technology | ||
| 38 | Automotive | Auto Technology | Auto Infotainment Technologies | |
| 39 | Automotive | Auto Technology | Auto Navigation Systems | |
| 40 | Automotive | Auto Technology | Auto Safety Technologies | |
| 16 | Automotive | Auto Type | ||
| 17 | Automotive | Auto Type | Budget Cars | |
| 18 | Automotive | Auto Type | Certified Pre-Owned Cars | |
| 19 | Automotive | Auto Type | Classic Cars | |
| 20 | Automotive | Auto Type | Concept Cars | |
| 21 | Automotive | Auto Type | Driverless Cars | |
| 22 | Automotive | Auto Type | Green Vehicles | |
| 23 | Automotive | Auto Type | Luxury Cars | |
| 24 | Automotive | Auto Type | Performance Cars | |
| 25 | Automotive | Car Culture | ||
| 26 | Automotive | Dash Cam Videos | ||
| 27 | Automotive | Motorcycles | ||
| 28 | Automotive | Road-Side Assistance | ||
| 29 | Automotive | Scooters | ||
| 42 | Books and Literature | |||
| 43 | Books and Literature | Art and Photography | ||
| 46 | Books and Literature | Comics and Graphic Novels | ||
| 48 | Books and Literature | Fiction | ||
| 49 | Books and Literature | Poetry | ||
| 52 | Business and Finance | |||
| 53 | Business and Finance | Business | ||
| 54 | Business and Finance | Business | Business Accounting & Finance | |
| 62 | Business and Finance | Business | Business Administration | |
| 63 | Business and Finance | Business | Business Banking & Finance | |
| 64 | Business and Finance | Business | Business Banking & Finance | Angel Investment |
| 65 | Business and Finance | Business | Business Banking & Finance | Bankruptcy |
| 66 | Business and Finance | Business | Business Banking & Finance | Business Loans |
| 67 | Business and Finance | Business | Business Banking & Finance | Debt Factoring & Invoice Discounting |
| 68 | Business and Finance | Business | Business Banking & Finance | Mergers and Acquisitions |
| 69 | Business and Finance | Business | Business Banking & Finance | Private Equity |
| 70 | Business and Finance | Business | Business Banking & Finance | Sale & Lease Back |
| 71 | Business and Finance | Business | Business Banking & Finance | Venture Capital |
| 72 | Business and Finance | Business | Business I.T. | |
| 73 | Business and Finance | Business | Business Operations | |
| 79 | Business and Finance | Business | Business Utilities | |
| 74 | Business and Finance | Business | Consumer Issues | |
| 75 | Business and Finance | Business | Consumer Issues | Recalls |
| 76 | Business and Finance | Business | Executive Leadership & Management | |
| 77 | Business and Finance | Business | Government Business | |
| 78 | Business and Finance | Business | Green Solutions | |
| 55 | Business and Finance | Business | Human Resources | |
| 56 | Business and Finance | Business | Large Business | |
| 57 | Business and Finance | Business | Logistics | |
| 58 | Business and Finance | Business | Marketing and Advertising | |
| 59 | Business and Finance | Business | Sales | |
| 60 | Business and Finance | Business | Small and Medium-sized Business | |
| 61 | Business and Finance | Business | Startups | |
| 80 | Business and Finance | Economy | ||
| 81 | Business and Finance | Economy | Commodities | |
| 82 | Business and Finance | Economy | Currencies | |
| 83 | Business and Finance | Economy | Financial Crisis | |
| 84 | Business and Finance | Economy | Financial Reform | |
| 85 | Business and Finance | Economy | Financial Regulation | |
| 86 | Business and Finance | Economy | Gasoline Prices | |
| 87 | Business and Finance | Economy | Housing Market | |
| 88 | Business and Finance | Economy | Interest Rates | |
| 89 | Business and Finance | Economy | Job Market | |
| 90 | Business and Finance | Industries | ||
| 91 | Business and Finance | Industries | Advertising Industry | |
| 102 | Business and Finance | Industries | Agriculture | |
| 113 | Business and Finance | Industries | Apparel Industry | |
| 117 | Business and Finance | Industries | Automotive Industry | |
| 118 | Business and Finance | Industries | Aviation Industry | |
| 119 | Business and Finance | Industries | Biotech and Biomedical Industry | |
| 120 | Business and Finance | Industries | Civil Engineering Industry | |
| 121 | Business and Finance | Industries | Construction Industry | |
| 122 | Business and Finance | Industries | Defense Industry | |
| 92 | Business and Finance | Industries | Education industry | |
| 93 | Business and Finance | Industries | Entertainment Industry | |
| 94 | Business and Finance | Industries | Environmental Services Industry | |
| 95 | Business and Finance | Industries | Financial Industry | |
| 96 | Business and Finance | Industries | Food Industry | |
| 97 | Business and Finance | Industries | Healthcare Industry | |
| 98 | Business and Finance | Industries | Hospitality Industry | |
| 99 | Business and Finance | Industries | Information Services Industry | |
| 100 | Business and Finance | Industries | Legal Services Industry | |
| 101 | Business and Finance | Industries | Logistics and Transportation Industry | |
| 103 | Business and Finance | Industries | Management Consulting Industry | |
| 104 | Business and Finance | Industries | Manufacturing Industry | |
| 105 | Business and Finance | Industries | Mechanical and Industrial Engineering Industry | |
| 106 | Business and Finance | Industries | Media Industry | |
| 107 | Business and Finance | Industries | Metals Industry | |
| 108 | Business and Finance | Industries | Non-Profit Organizations | |
| 109 | Business and Finance | Industries | Pharmaceutical Industry | |
| 110 | Business and Finance | Industries | Power and Energy Industry | |
| 111 | Business and Finance | Industries | Publishing Industry | |
| 112 | Business and Finance | Industries | Real Estate Industry | |
| 114 | Business and Finance | Industries | Retail Industry | |
| 115 | Business and Finance | Industries | Technology Industry | |
| 116 | Business and Finance | Industries | Telecommunications Industry | |
| 123 | Careers | |||
| 124 | Careers | Apprenticeships | ||
| 125 | Careers | Career Advice | ||
| 126 | Careers | Career Planning | ||
| 127 | Careers | Job Search | ||
| 128 | Careers | Job Search | Job Fairs | |
| 129 | Careers | Job Search | Resume Writing and Advice | |
| 130 | Careers | Remote Working | ||
| 131 | Careers | Vocational Training | ||
| 80DV8O | Technology & Computing | Computing | Computer Software and Applications | Communication |
| 380 | Crime | |||
| 381 | Disasters | |||
| 132 | Education | |||
| 133 | Education | Adult Education | ||
| 137 | Education | College Education | ||
| 138 | Education | College Education | College Planning | |
| 139 | Education | College Education | Postgraduate Education | |
| 140 | Education | College Education | Postgraduate Education | Professional School |
| 141 | Education | College Education | Undergraduate Education | |
| 142 | Education | Early Childhood Education | ||
| 143 | Education | Educational Assessment | ||
| 144 | Education | Educational Assessment | Standardized Testing | |
| 145 | Education | Homeschooling | ||
| 146 | Education | Homework and Study | ||
| 147 | Education | Language Learning | ||
| 148 | Education | Online Education | ||
| 149 | Education | Primary Education | ||
| 134 | Education | Private School | ||
| 135 | Education | Secondary Education | ||
| 136 | Education | Special Education | ||
| JLBCU7 | Entertainment | |||
| 324 | Entertainment | Movies | ||
| 338 | Entertainment | Music | ||
| 640 | Entertainment | Television | ||
| 8VZQHL | Events | |||
| 162 | Events | Awards Shows | ||
| 180 | Events | Business Expos & Conferences | ||
| 185 | Events | Fan Conventions | ||
| 186 | Family and Relationships | |||
| 187 | Family and Relationships | Bereavement | ||
| 188 | Family and Relationships | Dating | ||
| 189 | Family and Relationships | Divorce | ||
| 190 | Family and Relationships | Eldercare | ||
| 191 | Family and Relationships | Marriage and Civil Unions | ||
| 192 | Family and Relationships | Parenting | ||
| 193 | Family and Relationships | Parenting | Adoption and Fostering | |
| 194 | Family and Relationships | Parenting | Daycare and Pre-School | |
| 195 | Family and Relationships | Parenting | Internet Safety | |
| 196 | Family and Relationships | Parenting | Parenting Babies and Toddlers | |
| 197 | Family and Relationships | Parenting | Parenting Children Aged 4-11 | |
| 198 | Family and Relationships | Parenting | Parenting Teens | |
| 199 | Family and Relationships | Parenting | Special Needs Kids | |
| 200 | Family and Relationships | Single Life | ||
| 201 | Fine Art | |||
| 202 | Fine Art | Costume | ||
| 203 | Fine Art | Dance | ||
| 204 | Fine Art | Design | ||
| 205 | Fine Art | Digital Arts | ||
| 206 | Fine Art | Fine Art Photography | ||
| 207 | Fine Art | Modern Art | ||
| 208 | Fine Art | Opera | ||
| 209 | Fine Art | Theater | ||
| 210 | Food & Drink | |||
| 211 | Food & Drink | Alcoholic Beverages | ||
| 215 | Food & Drink | Barbecues and Grilling | ||
| 216 | Food & Drink | Cooking | ||
| 217 | Food & Drink | Desserts and Baking | ||
| 218 | Food & Drink | Dining Out | ||
| 219 | Food & Drink | Food Allergies | ||
| 220 | Food & Drink | Food Movements | ||
| 221 | Food & Drink | Healthy Cooking and Eating | ||
| 222 | Food & Drink | Non-Alcoholic Beverages | ||
| 212 | Food & Drink | Vegan Diets | ||
| 213 | Food & Drink | Vegetarian Diets | ||
| 214 | Food & Drink | World Cuisines | ||
| SPSHQ5 | Genres | |||
| VKIV56 | Genres | Nature | ||
| 325 | Genres | Action/Adventure | ||
| 641 | Genres | Animation & Anime | ||
| 44 | Genres | Biographies | ||
| 646 | Genres | Comedy | ||
| 332 | Genres | Documentary | ||
| 647 | Genres | Drama | ||
| 648 | Genres | Factual | ||
| 645 | Genres | Family/Children | ||
| 335 | Genres | Fantasy | ||
| EZWB7V | Genres | History | ||
| 649 | Genres | Holiday | ||
| 336 | Genres | Horror | ||
| TIFQA5 | Genres | Lifestyle | ||
| 650 | Genres | Music Video | ||
| 156 | Genres | Musical | ||
| 331 | Genres | Mystery | ||
| 651 | Genres | Reality TV | ||
| 326 | Genres | Romance | ||
| 652 | Genres | Science Fiction | ||
| 642 | Genres | Soap Opera | ||
| 643 | Genres | Special Interest (Indie/Art House) | ||
| 370 | Genres | Sports Radio | ||
| 371 | Genres | Talk Radio | ||
| 376 | Genres | Talk Radio | Public Radio | |
| A0AH3G | Genres | Talk Show | ||
| KHPC5A | Genres | True Crime | ||
| KHPC6A | Genres | Western | ||
| 51 | Genres | Young Adult | ||
| 223 | Healthy Living | |||
| 224 | Healthy Living | Children's Health | ||
| 225 | Healthy Living | Fitness and Exercise | ||
| 226 | Healthy Living | Fitness and Exercise | Participant Sports | |
| 227 | Healthy Living | Fitness and Exercise | Running and Jogging | |
| 228 | Healthy Living | Men's Health | ||
| 229 | Healthy Living | Nutrition | ||
| 230 | Healthy Living | Senior Health | ||
| 231 | Healthy Living | Weight Loss | ||
| 232 | Healthy Living | Wellness | ||
| 233 | Healthy Living | Wellness | Alternative Medicine | |
| 234 | Healthy Living | Wellness | Alternative Medicine | Herbs and Supplements |
| 235 | Healthy Living | Wellness | Alternative Medicine | Holistic Health |
| 236 | Healthy Living | Wellness | Physical Therapy | |
| 237 | Healthy Living | Wellness | Smoking Cessation | |
| 238 | Healthy Living | Women's Health | ||
| 239 | Hobbies & Interests | |||
| 240 | Hobbies & Interests | Antiquing and Antiques | ||
| 248 | Hobbies & Interests | Arts and Crafts | ||
| 249 | Hobbies & Interests | Arts and Crafts | Beadwork | |
| 250 | Hobbies & Interests | Arts and Crafts | Candle and Soap Making | |
| 251 | Hobbies & Interests | Arts and Crafts | Drawing and Sketching | |
| 252 | Hobbies & Interests | Arts and Crafts | Jewelry Making | |
| 253 | Hobbies & Interests | Arts and Crafts | Needlework | |
| 254 | Hobbies & Interests | Arts and Crafts | Painting | |
| 255 | Hobbies & Interests | Arts and Crafts | Photography | |
| 256 | Hobbies & Interests | Arts and Crafts | Scrapbooking | |
| 257 | Hobbies & Interests | Arts and Crafts | Woodworking | |
| 258 | Hobbies & Interests | Beekeeping | ||
| 259 | Hobbies & Interests | Birdwatching | ||
| 260 | Hobbies & Interests | Cigars | ||
| 261 | Hobbies & Interests | Collecting | ||
| 262 | Hobbies & Interests | Collecting | Comic Books | |
| 263 | Hobbies & Interests | Collecting | Stamps and Coins | |
| 264 | Hobbies & Interests | Content Production | ||
| 265 | Hobbies & Interests | Content Production | Audio Production | |
| 266 | Hobbies & Interests | Content Production | Freelance Writing | |
| 267 | Hobbies & Interests | Content Production | Screenwriting | |
| 268 | Hobbies & Interests | Content Production | Video Production | |
| 269 | Hobbies & Interests | Games and Puzzles | ||
| 270 | Hobbies & Interests | Games and Puzzles | Board Games and Puzzles | |
| 271 | Hobbies & Interests | Games and Puzzles | Card Games | |
| 272 | Hobbies & Interests | Games and Puzzles | Roleplaying Games | |
| 273 | Hobbies & Interests | Genealogy and Ancestry | ||
| 241 | Hobbies & Interests | Magic and Illusion | ||
| 242 | Hobbies & Interests | Model Toys | ||
| 243 | Hobbies & Interests | Musical Instruments | ||
| 244 | Hobbies & Interests | Paranormal Phenomena | ||
| 245 | Hobbies & Interests | Radio Control | ||
| 246 | Hobbies & Interests | Sci-fi and Fantasy | ||
| 247 | Hobbies & Interests | Workshops and Classes | ||
| 1KXCLD | Holidays | |||
| 157 | Holidays | National & Civic Holidays | ||
| 274 | Home & Garden | |||
| 275 | Home & Garden | Gardening | ||
| 278 | Home & Garden | Home Appliances | ||
| 279 | Home & Garden | Home Entertaining | ||
| 280 | Home & Garden | Home Improvement | ||
| 281 | Home & Garden | Home Security | ||
| 282 | Home & Garden | Indoor Environmental Quality | ||
| 283 | Home & Garden | Interior Decorating | ||
| 284 | Home & Garden | Landscaping | ||
| 285 | Home & Garden | Outdoor Decorating | ||
| 276 | Home & Garden | Remodeling & Construction | ||
| 277 | Home & Garden | Smart Home | ||
| 383 | Law | |||
| WQC6HR | Technology & Computing | Computing | Computer Software and Applications | Maps & Navigation |
| 286 | Medical Health | |||
| 323 | Medical Health | Cosmetic Medical Services | ||
| 287 | Medical Health | Diseases and Conditions | ||
| 288 | Medical Health | Diseases and Conditions | Allergies | |
| 306 | Medical Health | Diseases and Conditions | Blood Disorders | |
| 312 | Medical Health | Diseases and Conditions | Bone and Joint Conditions | |
| 313 | Medical Health | Diseases and Conditions | Brain and Nervous System Disorders | |
| 314 | Medical Health | Diseases and Conditions | Cancer | |
| 315 | Medical Health | Diseases and Conditions | Cold and Flu | |
| 316 | Medical Health | Diseases and Conditions | Dental Health | |
| 317 | Medical Health | Diseases and Conditions | Diabetes | |
| 318 | Medical Health | Diseases and Conditions | Digestive Disorders | |
| 289 | Medical Health | Diseases and Conditions | Ear, Nose and Throat Conditions | |
| 290 | Medical Health | Diseases and Conditions | Endocrine and Metabolic Diseases | |
| 291 | Medical Health | Diseases and Conditions | Endocrine and Metabolic Diseases | Hormonal Disorders |
| 292 | Medical Health | Diseases and Conditions | Endocrine and Metabolic Diseases | Menopause |
| 293 | Medical Health | Diseases and Conditions | Endocrine and Metabolic Diseases | Thyroid Disorders |
| 294 | Medical Health | Diseases and Conditions | Eye and Vision Conditions | |
| 295 | Medical Health | Diseases and Conditions | Foot Health | |
| 296 | Medical Health | Diseases and Conditions | Heart and Cardiovascular Diseases | |
| 297 | Medical Health | Diseases and Conditions | Infectious Diseases | |
| 298 | Medical Health | Diseases and Conditions | Injuries | |
| 299 | Medical Health | Diseases and Conditions | Injuries | First Aid |
| 300 | Medical Health | Diseases and Conditions | Lung and Respiratory Health | |
| 301 | Medical Health | Diseases and Conditions | Mental Health | |
| 302 | Medical Health | Diseases and Conditions | Reproductive Health | |
| 303 | Medical Health | Diseases and Conditions | Reproductive Health | Birth Control |
| 304 | Medical Health | Diseases and Conditions | Reproductive Health | Infertility |
| 305 | Medical Health | Diseases and Conditions | Reproductive Health | Pregnancy |
| 307 | Medical Health | Diseases and Conditions | Sexual Health | |
| 308 | Medical Health | Diseases and Conditions | Sexual Health | Sexual Conditions |
| 309 | Medical Health | Diseases and Conditions | Skin and Dermatology | |
| 310 | Medical Health | Diseases and Conditions | Sleep Disorders | |
| 311 | Medical Health | Diseases and Conditions | Substance Abuse | |
| 319 | Medical Health | Medical Tests | ||
| 320 | Medical Health | Pharmaceutical Drugs | ||
| 321 | Medical Health | Surgery | ||
| 322 | Medical Health | Vaccines | ||
| 342 | Entertainment | Music | Adult Album Alternative | |
| 339 | Entertainment | Music | Adult Contemporary Music | |
| 340 | Entertainment | Music | Adult Contemporary Music | Soft AC Music |
| 341 | Entertainment | Music | Adult Contemporary Music | Urban AC Music |
| 343 | Entertainment | Music | Alternative Music | |
| 360 | Entertainment | Music | Blues | |
| 344 | Entertainment | Music | Children's Music | |
| 345 | Entertainment | Music | Classic Hits | |
| 346 | Entertainment | Music | Classical Music | |
| 347 | Entertainment | Music | College Radio | |
| 348 | Entertainment | Music | Comedy (Music and Audio) | |
| 349 | Entertainment | Music | Contemporary Hits/Pop/Top 40 | |
| 350 | Entertainment | Music | Country Music | |
| 351 | Entertainment | Music | Dance and Electronic Music | |
| 354 | Entertainment | Music | Gospel Music | |
| 355 | Entertainment | Music | Hip Hop Music | |
| 356 | Entertainment | Music | Inspirational/New Age Music | |
| 357 | Entertainment | Music | Jazz | |
| 358 | Entertainment | Music | Oldies/Adult Standards | |
| 362 | Entertainment | Music | R&B/Soul/Funk | |
| 359 | Entertainment | Music | Reggae | |
| 361 | Entertainment | Music | Religious (Music and Audio) | |
| 363 | Entertainment | Music | Rock Music | |
| 364 | Entertainment | Music | Rock Music | Album-oriented Rock |
| 365 | Entertainment | Music | Rock Music | Alternative Rock |
| 366 | Entertainment | Music | Rock Music | Classic Rock |
| 367 | Entertainment | Music | Rock Music | Hard Rock |
| 368 | Entertainment | Music | Rock Music | Soft Rock |
| 353 | Entertainment | Music | Songwriters/Folk | |
| 369 | Entertainment | Music | Soundtracks, TV and Showtunes | |
| 352 | Entertainment | Music | World/International Music | |
| 377 | Entertainment | Music | Urban Contemporary Music | |
| 378 | Entertainment | Music | Variety (Music and Audio) | |
| 163 | Personal Celebrations & Life Events | |||
| 164 | Personal Celebrations & Life Events | Anniversary | ||
| 166 | Personal Celebrations & Life Events | Baby Shower | ||
| 167 | Personal Celebrations & Life Events | Bachelor Party | ||
| 168 | Personal Celebrations & Life Events | Bachelorette Party | ||
| 169 | Personal Celebrations & Life Events | Birth | ||
| 170 | Personal Celebrations & Life Events | Birthday | ||
| 171 | Personal Celebrations & Life Events | Funeral | ||
| 172 | Personal Celebrations & Life Events | Graduation | ||
| 173 | Personal Celebrations & Life Events | Prom | ||
| 165 | Personal Celebrations & Life Events | Wedding | ||
| 391 | Personal Finance | |||
| 392 | Personal Finance | Consumer Banking | ||
| 393 | Personal Finance | Financial Assistance | ||
| 394 | Personal Finance | Financial Assistance | Government Support and Welfare | |
| 395 | Personal Finance | Financial Assistance | Student Financial Aid | |
| 396 | Personal Finance | Financial Planning | ||
| 397 | Personal Finance | Frugal Living | ||
| 417 | Personal Finance | Home Utilities | ||
| 418 | Personal Finance | Home Utilities | Gas and Electric | |
| 419 | Personal Finance | Home Utilities | Internet Service Providers | |
| 420 | Personal Finance | Home Utilities | Phone Services | |
| 421 | Personal Finance | Home Utilities | Water Services | |
| 398 | Personal Finance | Insurance | ||
| 399 | Personal Finance | Insurance | Health Insurance | |
| 400 | Personal Finance | Insurance | Home Insurance | |
| 401 | Personal Finance | Insurance | Life Insurance | |
| 402 | Personal Finance | Insurance | Motor Insurance | |
| 403 | Personal Finance | Insurance | Pet Insurance | |
| 404 | Personal Finance | Insurance | Travel Insurance | |
| 405 | Personal Finance | Personal Debt | ||
| 406 | Personal Finance | Personal Debt | Credit Cards | |
| 407 | Personal Finance | Personal Debt | Home Financing | |
| 408 | Personal Finance | Personal Debt | Personal Loans | |
| 409 | Personal Finance | Personal Debt | Student Loans | |
| 410 | Personal Finance | Personal Investing | ||
| 411 | Personal Finance | Personal Investing | Hedge Funds | |
| 412 | Personal Finance | Personal Investing | Mutual Funds | |
| 413 | Personal Finance | Personal Investing | Options | |
| 414 | Personal Finance | Personal Investing | Stocks and Bonds | |
| 415 | Personal Finance | Personal Taxes | ||
| 416 | Personal Finance | Retirement Planning | ||
| 422 | Pets | |||
| 423 | Pets | Birds | ||
| 424 | Pets | Cats | ||
| 425 | Pets | Dogs | ||
| 426 | Pets | Fish and Aquariums | ||
| 427 | Pets | Large Animals | ||
| 428 | Pets | Pet Adoptions | ||
| 431 | Pets | Pet Supplies | ||
| 429 | Pets | Reptiles | ||
| 430 | Pets | Veterinary Medicine | ||
| 386 | Politics | |||
| 8YPBBL | Politics | Civic affairs | ||
| 387 | Politics | Elections | ||
| 388 | Politics | Political Issues & policy | ||
| 432 | Pop Culture | |||
| 433 | Pop Culture | Celebrity Deaths | ||
| 434 | Pop Culture | Celebrity Families | ||
| 435 | Pop Culture | Celebrity Homes | ||
| 436 | Pop Culture | Celebrity Pregnancy | ||
| 437 | Pop Culture | Celebrity Relationships | ||
| 438 | Pop Culture | Celebrity Scandal | ||
| 439 | Pop Culture | Celebrity Style | ||
| 440 | Pop Culture | Humor and Satire | ||
| W3CW2J | Technology & Computing | Computing | Computer Software and Applications | Productivity |
| 441 | Real Estate | |||
| 442 | Real Estate | Apartments | ||
| 445 | Real Estate | Developmental Sites | ||
| 446 | Real Estate | Hotel Properties | ||
| 447 | Real Estate | Houses | ||
| 448 | Real Estate | Industrial Property | ||
| 449 | Real Estate | Land and Farms | ||
| 450 | Real Estate | Office Property | ||
| 451 | Real Estate | Real Estate Buying and Selling | ||
| 452 | Real Estate | Real Estate Renting and Leasing | ||
| 443 | Real Estate | Retail Property | ||
| 444 | Real Estate | Vacation Properties | ||
| 453 | Religion & Spirituality | |||
| 454 | Religion & Spirituality | Agnosticism | ||
| 456 | Religion & Spirituality | Astrology | ||
| 457 | Religion & Spirituality | Atheism | ||
| 458 | Religion & Spirituality | Buddhism | ||
| 459 | Religion & Spirituality | Christianity | ||
| 460 | Religion & Spirituality | Hinduism | ||
| 461 | Religion & Spirituality | Islam | ||
| 462 | Religion & Spirituality | Judaism | ||
| 463 | Religion & Spirituality | Sikhism | ||
| 455 | Religion & Spirituality | Spirituality | ||
| 464 | Science | |||
| 465 | Science | Biological Sciences | ||
| 466 | Science | Chemistry | ||
| 467 | Science | Environment | ||
| 468 | Science | Genetics | ||
| 469 | Science | Geography | ||
| 470 | Science | Geology | ||
| 471 | Science | Physics | ||
| 472 | Science | Space and Astronomy | ||
| 390 | Science | Weather | ||
| v9i3On | Sensitive Topics | |||
| Rm3SiT | Sensitive Topics | Adult & Explicit Sexual Content | ||
| avbNf2 | Sensitive Topics | Arms & Ammunition | ||
| XtODT3 | Sensitive Topics | Crime & Harmful Acts to Individuals, Society & Human Right Violations | ||
| I4GWl6 | Sensitive Topics | Death, Injury, or Military Conflict | ||
| Z7rJBM | Sensitive Topics | Debated Sensitive Social Issues | ||
| HxqYV1 | Sensitive Topics | Hate Speech and Acts of Aggression | ||
| pg0WhF | Sensitive Topics | Illegal Drugs, Tobacco, eCigarettes, Vaping, Alcohol | ||
| j9PaO9 | Sensitive Topics | Obscenity and Profanity | ||
| mm3UXx | Sensitive Topics | Online Piracy | ||
| 6i4dB6 | Sensitive Topics | Spam or Harmful Content | ||
| 8FD8nI | Sensitive Topics | Terrorism | ||
| 473 | Shopping | |||
| 482 | Shopping | Children's Games and Toys | ||
| 474 | Shopping | Coupons and Discounts | ||
| 475 | Shopping | Flower Shopping | ||
| 476 | Shopping | Gifts and Greetings Cards | ||
| 477 | Shopping | Grocery Shopping | ||
| 478 | Shopping | Holiday Shopping | ||
| 479 | Shopping | Household Supplies | ||
| 480 | Shopping | Lotteries and Scratchcards | ||
| 161 | Shopping | Party Supplies and Decorations | ||
| 481 | Shopping | Sales and Promotions | ||
| 483 | Sports | |||
| 484 | Sports | American Football | ||
| 507 | Sports | Australian Rules Football | ||
| 518 | Sports | Auto Racing | ||
| 519 | Sports | Auto Racing | Motorcycle Sports | |
| 534 | Sports | Badminton | ||
| 545 | Sports | Baseball | ||
| 547 | Sports | Basketball | ||
| 548 | Sports | Beach Volleyball | ||
| 549 | Sports | Bodybuilding | ||
| 550 | Sports | Bowling | ||
| 485 | Sports | Boxing | ||
| 486 | Sports | Cheerleading | ||
| 487 | Sports | College Sports | ||
| 490 | Sports | College Sports | College Baseball | |
| 489 | Sports | College Sports | College Basketball | |
| 488 | Sports | College Sports | College Football | |
| 491 | Sports | Cricket | ||
| 492 | Sports | Cycling | ||
| 493 | Sports | Darts | ||
| 494 | Sports | Disabled Sports | ||
| 495 | Sports | Diving | ||
| 496 | Sports | Equine Sports | ||
| 497 | Sports | Equine Sports | Horse Racing | |
| 498 | Sports | Extreme Sports | ||
| 499 | Sports | Extreme Sports | Canoeing and Kayaking | |
| 500 | Sports | Extreme Sports | Climbing | |
| 501 | Sports | Extreme Sports | Paintball | |
| 502 | Sports | Extreme Sports | Scuba Diving | |
| 503 | Sports | Extreme Sports | Skateboarding | |
| 504 | Sports | Extreme Sports | Snowboarding | |
| 505 | Sports | Extreme Sports | Surfing and Bodyboarding | |
| 506 | Sports | Extreme Sports | Waterskiing and Wakeboarding | |
| 508 | Sports | Fantasy Sports | ||
| 509 | Sports | Field Hockey | ||
| 510 | Sports | Figure Skating | ||
| 511 | Sports | Fishing Sports | ||
| 512 | Sports | Golf | ||
| 513 | Sports | Gymnastics | ||
| 514 | Sports | Hunting and Shooting | ||
| 515 | Sports | Ice Hockey | ||
| 516 | Sports | Inline Skating | ||
| 517 | Sports | Lacrosse | ||
| 520 | Sports | Martial Arts | ||
| 521 | Sports | Olympic Sports | ||
| 522 | Sports | Olympic Sports | Summer Olympic Sports | |
| 523 | Sports | Olympic Sports | Winter Olympic Sports | |
| 524 | Sports | Poker and Professional Gambling | ||
| 525 | Sports | Rodeo | ||
| 526 | Sports | Rowing | ||
| 527 | Sports | Rugby | ||
| 528 | Sports | Rugby | Rugby League | |
| 529 | Sports | Rugby | Rugby Union | |
| 530 | Sports | Sailing | ||
| 531 | Sports | Skiing | ||
| 532 | Sports | Snooker/Pool/Billiards | ||
| 533 | Sports | Soccer | ||
| 535 | Sports | Softball | ||
| 551 | Sports | Sports Equipment | ||
| 536 | Sports | Squash | ||
| 537 | Sports | Swimming | ||
| 538 | Sports | Table Tennis | ||
| 539 | Sports | Tennis | ||
| 540 | Sports | Track and Field | ||
| 541 | Sports | Volleyball | ||
| 542 | Sports | Walking | ||
| 543 | Sports | Water Polo | ||
| 544 | Sports | Weightlifting | ||
| 546 | Sports | Wrestling | ||
| 552 | Style & Fashion | |||
| 553 | Style & Fashion | Beauty | ||
| 554 | Style & Fashion | Beauty | Hair Care | |
| 555 | Style & Fashion | Beauty | Makeup and Accessories | |
| 556 | Style & Fashion | Beauty | Nail Care | |
| 557 | Style & Fashion | Beauty | Natural and Organic Beauty | |
| 558 | Style & Fashion | Beauty | Perfume and Fragrance | |
| 559 | Style & Fashion | Beauty | Skin Care | |
| 574 | Style & Fashion | Body Art | ||
| 575 | Style & Fashion | Children's Clothing | ||
| 576 | Style & Fashion | Designer Clothing | ||
| 577 | Style & Fashion | Fashion Trends | ||
| 578 | Style & Fashion | High Fashion | ||
| 579 | Style & Fashion | Men's Fashion | ||
| 580 | Style & Fashion | Men's Fashion | Men's Accessories | |
| 581 | Style & Fashion | Men's Fashion | Men's Accessories | Men's Jewelry and Watches |
| 582 | Style & Fashion | Men's Fashion | Men's Clothing | |
| 583 | Style & Fashion | Men's Fashion | Men's Clothing | Men's Business Wear |
| 584 | Style & Fashion | Men's Fashion | Men's Clothing | Men's Casual Wear |
| 585 | Style & Fashion | Men's Fashion | Men's Clothing | Men's Formal Wear |
| 586 | Style & Fashion | Men's Fashion | Men's Clothing | Men's Outerwear |
| 587 | Style & Fashion | Men's Fashion | Men's Clothing | Men's Sportswear |
| 588 | Style & Fashion | Men's Fashion | Men's Clothing | Men's Underwear and Sleepwear |
| 589 | Style & Fashion | Men's Fashion | Men's Shoes and Footwear | |
| 590 | Style & Fashion | Personal Care | ||
| 591 | Style & Fashion | Personal Care | Bath and Shower | |
| 592 | Style & Fashion | Personal Care | Deodorant and Antiperspirant | |
| 593 | Style & Fashion | Personal Care | Oral care | |
| 594 | Style & Fashion | Personal Care | Shaving | |
| 595 | Style & Fashion | Street Style | ||
| 560 | Style & Fashion | Women's Fashion | ||
| 561 | Style & Fashion | Women's Fashion | Women's Accessories | |
| 562 | Style & Fashion | Women's Fashion | Women's Accessories | Women's Glasses |
| 563 | Style & Fashion | Women's Fashion | Women's Accessories | Women's Handbags and Wallets |
| 564 | Style & Fashion | Women's Fashion | Women's Accessories | Women's Hats and Scarves |
| 565 | Style & Fashion | Women's Fashion | Women's Accessories | Women's Jewelry and Watches |
| 566 | Style & Fashion | Women's Fashion | Women's Clothing | |
| 567 | Style & Fashion | Women's Fashion | Women's Clothing | Women's Business Wear |
| 568 | Style & Fashion | Women's Fashion | Women's Clothing | Women's Casual Wear |
| 569 | Style & Fashion | Women's Fashion | Women's Clothing | Women's Formal Wear |
| 570 | Style & Fashion | Women's Fashion | Women's Clothing | Women's Intimates and Sleepwear |
| 571 | Style & Fashion | Women's Fashion | Women's Clothing | Women's Outerwear |
| 572 | Style & Fashion | Women's Fashion | Women's Clothing | Women's Sportswear |
| 573 | Style & Fashion | Women's Fashion | Women's Shoes and Footwear | |
| 596 | Technology & Computing | |||
| 597 | Technology & Computing | Artificial Intelligence | ||
| 598 | Technology & Computing | Augmented Reality | ||
| 599 | Technology & Computing | Computing | ||
| 600 | Technology & Computing | Computing | Computer Networking | |
| 601 | Technology & Computing | Computing | Computer Peripherals | |
| 602 | Technology & Computing | Computing | Computer Software and Applications | |
| 603 | Technology & Computing | Computing | Computer Software and Applications | 3-D Graphics |
| 608 | Technology & Computing | Computing | Computer Software and Applications | Antivirus Software |
| 609 | Technology & Computing | Computing | Computer Software and Applications | Browsers |
| 610 | Technology & Computing | Computing | Computer Software and Applications | Computer Animation |
| 611 | Technology & Computing | Computing | Computer Software and Applications | Databases |
| 612 | Technology & Computing | Computing | Computer Software and Applications | Desktop Publishing |
| 613 | Technology & Computing | Computing | Computer Software and Applications | Digital Audio |
| 614 | Technology & Computing | Computing | Computer Software and Applications | Graphics Software |
| 615 | Technology & Computing | Computing | Computer Software and Applications | Operating Systems |
| 604 | Technology & Computing | Computing | Computer Software and Applications | Photo Editing Software |
| 605 | Technology & Computing | Computing | Computer Software and Applications | Shareware and Freeware |
| 606 | Technology & Computing | Computing | Computer Software and Applications | Video Software |
| 607 | Technology & Computing | Computing | Computer Software and Applications | Web Conferencing |
| 616 | Technology & Computing | Computing | Data Storage and Warehousing | |
| 617 | Technology & Computing | Computing | Desktops | |
| 618 | Technology & Computing | Computing | Information and Network Security | |
| 619 | Technology & Computing | Computing | Internet | |
| 620 | Technology & Computing | Computing | Internet | Cloud Computing |
| 623 | Technology & Computing | Computing | Internet | |
| 624 | Technology & Computing | Computing | Internet | Internet for Beginners |
| 625 | Technology & Computing | Computing | Internet | Internet of Things |
| 626 | Technology & Computing | Computing | Internet | IT and Internet Support |
| 627 | Technology & Computing | Computing | Internet | Search |
| 628 | Technology & Computing | Computing | Internet | Social Networking |
| 629 | Technology & Computing | Computing | Internet | Web Design and HTML |
| 621 | Technology & Computing | Computing | Internet | Web Development |
| 622 | Technology & Computing | Computing | Internet | Web Hosting |
| 630 | Technology & Computing | Computing | Laptops | |
| 631 | Technology & Computing | Computing | Programming Languages | |
| 632 | Technology & Computing | Consumer Electronics | ||
| 633 | Technology & Computing | Consumer Electronics | Cameras and Camcorders | |
| 634 | Technology & Computing | Consumer Electronics | Home Entertainment Systems | |
| 635 | Technology & Computing | Consumer Electronics | Smartphones | |
| 636 | Technology & Computing | Consumer Electronics | Tablets and E-readers | |
| 637 | Technology & Computing | Consumer Electronics | Wearable Technology | |
| 638 | Technology & Computing | Robotics | ||
| 639 | Technology & Computing | Virtual Reality | ||
| 653 | Travel | |||
| 654 | Travel | Travel Accessories | ||
| 655 | Travel | Travel Locations | ||
| 656 | Travel | Travel Locations | Africa Travel | |
| 657 | Travel | Travel Locations | Asia Travel | |
| 658 | Travel | Travel Locations | Australia and Oceania Travel | |
| 659 | Travel | Travel Locations | Europe Travel | |
| 660 | Travel | Travel Locations | North America Travel | |
| 661 | Travel | Travel Locations | Polar Travel | |
| 662 | Travel | Travel Locations | South America Travel | |
| 663 | Travel | Travel Preparation and Advice | ||
| 664 | Travel | Travel Type | ||
| 665 | Travel | Travel Type | Adventure Travel | |
| 672 | Travel | Travel Type | Air Travel | |
| 673 | Travel | Travel Type | Beach Travel | |
| 674 | Travel | Travel Type | Bed & Breakfasts | |
| 675 | Travel | Travel Type | Budget Travel | |
| 676 | Travel | Travel Type | Business Travel | |
| 677 | Travel | Travel Type | Camping | |
| 678 | Travel | Travel Type | Cruises | |
| 679 | Travel | Travel Type | Day Trips | |
| 666 | Travel | Travel Type | Family Travel | |
| 667 | Travel | Travel Type | Honeymoons and Getaways | |
| 668 | Travel | Travel Type | Hotels and Motels | |
| 669 | Travel | Travel Type | Rail Travel | |
| 670 | Travel | Travel Type | Road Trips | |
| 671 | Travel | Travel Type | Spas | |
| 680 | Video Gaming | |||
| 681 | Video Gaming | Console Games | ||
| 682 | Video Gaming | eSports | ||
| 683 | Video Gaming | Mobile Games | ||
| 684 | Video Gaming | PC Games | ||
| 685 | Video Gaming | Video Game Genres | ||
| 686 | Video Gaming | Video Game Genres | Action Video Games | |
| 691 | Video Gaming | Video Game Genres | Action-Adventure Video Games | |
| MQ2XML | Video Gaming | Video Game Genres | Adult Video Games | |
| 692 | Video Gaming | Video Game Genres | Adventure Video Games | |
| ZJG29S | Video Gaming | Video Game Genres | Casino and Gambling Video Games | |
| 693 | Video Gaming | Video Game Genres | Casual Games | |
| 694 | Video Gaming | Video Game Genres | Educational Video Games | |
| 695 | Video Gaming | Video Game Genres | Exercise and Fitness Video Games | |
| VWGKS7 | Video Gaming | Video Game Genres | Family Video Games | |
| II436J | Video Gaming | Video Game Genres | Horror Video Games | |
| 696 | Video Gaming | Video Game Genres | MMOs | |
| 697 | Video Gaming | Video Game Genres | Music and Party Video Games | |
| 698 | Video Gaming | Video Game Genres | Puzzle Video Games | |
| VK7KD0 | Video Gaming | Video Game Genres | Racing Video Games | |
| 687 | Video Gaming | Video Game Genres | Role-Playing Video Games | |
| 688 | Video Gaming | Video Game Genres | Simulation Video Games | |
| 689 | Video Gaming | Video Game Genres | Sports Video Games | |
| 690 | Video Gaming | Video Game Genres | Strategy Video Games | |
| 389 | War and Conflicts |
This taxonomy is designed for web filtering, DNS security, parental controls, and acceptable-use policy
enforcement. It includes operational categories that have no equivalent in advertising taxonomies, such as
Malware / Phishing / Suspicious, VPN / Proxy / Anonymizers,
Parked / For-Sale Domains, and URL Shorteners.
The IAB column shows the closest official IAB Content Taxonomy 3.0 equivalent for each category.
| Category | Description | Example domains | Closest IAB 3.0 category |
|---|---|---|---|
| Adult | The Adult category encompasses websites that contain sexually explicit content, including pornography, adult entertainment, and related materials. This category is often filtered to protect minors from exposure to inappropriate content and to maintain a safe browsing environment in workplaces and educational institutions. Filtering these sites helps to prevent potential distractions and the inappropriate use of internet resources. | pornhub.com, xvideos.com, adultfriendfinder.com | Sensitive Topics > Adult & Explicit Sexual Content Flagged as brand-unsafe under GARM/IAB sensitive topics. |
| Advertising/Marketing | The Advertising/Marketing category encompasses websites that primarily focus on promoting products, services, or brands through various marketing strategies. This category might be filtered in environments such as schools or workplaces to minimize distractions, reduce bandwidth usage, or prevent exposure to aggressive marketing tactics. Additionally, filtering these sites can help maintain a more focused and productive online experience for users. | googleads.com, facebook.com, adroll.com | Business and Finance > Business > Marketing and Advertising |
| AI / LLM Tools | The 'AI / LLM Tools' category covers websites that provide artificial intelligence services, large language models, AI chatbots, and machine learning platforms. This category may be filtered in organizations to prevent data leakage through AI prompts, control the use of generative AI tools, or ensure compliance with corporate AI usage policies. Some environments restrict access to prevent employees from sharing sensitive or proprietary information with external AI systems. | chat.openai.com, claude.ai, gemini.google.com | Technology & Computing > Artificial Intelligence |
| Alcohol | The 'Alcohol' category covers websites that promote or sell alcoholic beverages, including beer, wine, and spirits. This category might be filtered in workplaces, schools, or by parents to prevent access to content that promotes excessive drinking or provides information about alcohol consumption. Filtering these sites can help maintain a safe and responsible environment, particularly for minors and in professional settings. | liquor.com, drizly.com, totalwine.com | Food & Drink > Alcoholic Beverages Also a GARM/IAB sensitive topic for ad targeting. |
| Arts & Entertainment | The Arts & Entertainment category encompasses websites that feature content related to art, music, movies, television, theater, and other forms of entertainment. This category may be filtered to prevent access to potentially inappropriate content or to maintain productivity in work or educational environments. Additionally, some organizations may choose to restrict access to prevent distractions or exposure to content that does not align with their values. | rollingstone.com, imdb.com, pitchfork.com | Fine Art Maps to Fine Art or to Entertainment > Movies / Entertainment > Music / Entertainment > Television depending on content. |
| Automotive & Transportation | The Automotive & Transportation category includes websites related to vehicles, automotive services, transportation systems, and related topics. This category might be filtered to prevent access to content that could be deemed inappropriate or distracting in certain environments, such as workplaces or educational institutions. Additionally, it may include sites that promote unsafe driving practices or share unverified automotive advice. | autotrader.com, cars.com, edmunds.com | Automotive |
| Blogs/Personal Sites | The 'Blogs/Personal Sites' category includes websites that are primarily used for personal expression, sharing opinions, or documenting experiences. This category may be filtered to prevent access to content that could be deemed inappropriate, misleading, or unrelated to professional environments. Additionally, personal blogs can sometimes include unverified information that organizations may wish to restrict for accuracy and safety reasons. | wordpress.com, blogger.com, tumblr.com | Hobbies & Interests > Content Production Personal blogs classify by their dominant topic; this is the fallback. |
| Business | The 'Business' category encompasses websites that provide services, resources, and information related to business operations, including finance, consulting, and management. These sites may be filtered to ensure that employees remain focused on their work and to prevent access to potentially distracting content during business hours. Additionally, some organizations may restrict access to prevent security risks associated with unverified business services or platforms. | linkedin.com, forbes.com, businessinsider.com | Business and Finance > Business |
| CDN / Hosting / Infrastructure | The 'CDN / Hosting / Infrastructure' category covers websites that provide content delivery networks, web hosting services, domain registration, and internet infrastructure. This category may be filtered to monitor or restrict access to hosting platforms that could be used to set up unauthorized websites or services. Organizations may also track access to these sites to prevent shadow IT or detect potential exfiltration through infrastructure services. | cloudflare.com, aws.amazon.com, akamai.com | Technology & Computing > Computing > Internet > Web Hosting |
| Cloud Storage / File Hosting | The 'Cloud Storage / File Hosting' category encompasses websites that provide cloud-based file storage, synchronization, and sharing services. This category may be filtered to prevent data exfiltration, control unauthorized file transfers, or ensure compliance with data loss prevention (DLP) policies. Organizations often restrict access to personal cloud storage services to protect sensitive corporate data from being uploaded to unmanaged platforms. | dropbox.com, drive.google.com, onedrive.live.com | Technology & Computing > Computing > Data Storage and Warehousing |
| Community Sites | The 'Community Sites' category encompasses websites that facilitate social networking, forums, and user-generated content, allowing individuals to connect and share ideas. These sites may be filtered in certain environments, such as schools or workplaces, to minimize distractions and ensure a focused atmosphere. Additionally, they can pose risks related to inappropriate content, online bullying, or privacy concerns. | reddit.com, facebook.com, twitter.com | Technology & Computing > Computing > Internet > Social Networking |
| Computers & Technology | The 'Computers & Technology' category encompasses websites that provide information, resources, and services related to computer hardware, software, programming, and emerging technologies. This category may be filtered to prevent access to content that could distract employees or students, or to limit exposure to potentially harmful software and security threats. Additionally, some organizations may restrict access to sites that discuss hacking or other illicit activities related to technology. | techcrunch.com, cnet.com, tomshardware.com | Technology & Computing |
| Cryptocurrency | The 'Cryptocurrency' category covers websites related to digital currencies, blockchain technology, crypto exchanges, wallets, and decentralized finance (DeFi). This category may be filtered to prevent employees from engaging in cryptocurrency trading during work hours, to reduce exposure to crypto scams and fraud, or to comply with organizational financial policies. Some environments restrict access due to the high-risk nature of cryptocurrency investments and associated security threats. | coinbase.com, binance.com, coinmarketcap.com | Business and Finance > Economy > Currencies |
| Dating | The 'Dating' category encompasses websites and platforms designed to facilitate romantic connections, matchmaking, and relationship-building between individuals. This category may be filtered in workplaces and educational environments to maintain professionalism and prevent distractions. Additionally, some dating sites may contain suggestive content or pose risks related to online predators, making filtering important for protecting minors and maintaining safe browsing environments. | tinder.com, match.com, bumble.com | Family and Relationships > Dating |
| Developer Tools / Code Hosting | The 'Developer Tools / Code Hosting' category covers websites that provide source code hosting, version control, developer collaboration platforms, and programming tools. This category may be filtered in certain environments to prevent unauthorized code uploads or downloads, control access to open-source repositories, or restrict the use of external development tools that could introduce security vulnerabilities or bypass approved software development processes. | github.com, gitlab.com, bitbucket.org | Technology & Computing > Computing > Computer Software and Applications |
| Education/Reference | The 'Education/Reference' category encompasses websites that provide educational resources, reference materials, and learning tools for students and educators. This category may be filtered in certain environments to prevent distractions from non-educational content or to ensure that resources align with institutional guidelines. Sites in this category can range from online encyclopedias to educational platforms and databases. | khanacademy.org, wikipedia.org, study.com | Education |
| Email and Messaging | The 'Email and Messaging' category encompasses various platforms and services used for electronic communication, including email services, instant messaging apps, and social media messaging features. This category might be filtered in organizational environments to prevent distractions, protect against phishing attacks, or minimize the risk of data leaks. Filtering these services can help maintain productivity and enhance cybersecurity by controlling the flow of information outside the organization. | gmail.com, yahoo.com, outlook.com | Technology & Computing > Computing > Internet > Email |
| File Sharing/P2P | The 'File Sharing/P2P' category encompasses websites and services that facilitate the sharing of files through peer-to-peer (P2P) networks. This category is often filtered due to concerns over copyright infringement, the distribution of malware, and the potential for users to access inappropriate or illegal content. Organizations may implement filters to protect their networks and maintain compliance with legal and ethical standards. | thepiratebay.org, 1337x.to, torrentz2.eu | Technology & Computing > Computing > Internet Piracy-oriented sharing maps to Sensitive Topics > Online Piracy. |
| Financial Services | The Financial Services category encompasses websites that provide banking, investment, insurance, and other financial services to consumers and businesses. This category is often filtered to protect users from potential financial fraud, phishing schemes, or malicious activities targeting sensitive financial information. Additionally, organizations may restrict access to these sites to promote productivity and reduce the risk of data breaches. | bankofamerica.com, chase.com, wellsfargo.com | Personal Finance B2B financial services map to Business and Finance > Industries > Financial Industry. |
| Food & Drink | The 'Food & Drink' category covers websites focused on food products, beverages, recipes, cooking, food blogs, and culinary content. This category may be filtered in workplace or educational environments to minimize distractions and maintain productivity. It includes food manufacturers, beverage brands, recipe aggregators, and food-related content platforms that are not primarily restaurants or dining establishments. | allrecipes.com, foodnetwork.com, epicurious.com | Food & Drink |
| Forums / Message Boards | The 'Forums / Message Boards' category encompasses websites that host user-driven discussion threads, Q&A platforms, and community message boards. This category may be filtered to prevent employees from spending excessive time in online discussions, to reduce exposure to unmoderated or inappropriate content, or to limit potential data leakage through public forum posts. Forums can also be vectors for social engineering and misinformation. | reddit.com, quora.com, stackexchange.com | Technology & Computing > Computing > Internet > Social Networking |
| Freeware/Software | The 'Freeware/Software' category includes websites that offer free software applications for download. These sites may be filtered to prevent the installation of potentially harmful software, such as adware or malware, that can compromise a user's device or data security. Additionally, some freeware may contain bundled software or unwanted features that can disrupt user experience or lead to privacy concerns. | sourceforge.net, download.com, filehippo.com | Technology & Computing > Computing > Computer Software and Applications > Shareware and Freeware |
| Gambling | The Gambling category covers websites that offer online betting, gaming, and wagering activities, including casinos, poker rooms, and sports betting platforms. This category is often filtered to protect users, especially minors, from the potential risks associated with gambling, such as addiction and financial loss. Additionally, some organizations and regions may have legal restrictions on access to gambling-related content. | bet365.com, pokerstars.com, draftkings.com | Sports > Poker and Professional Gambling Also an IAB/GARM sensitive vertical; casino sites map to Attractions > Casinos & Gambling. |
| Gaming | The 'Gaming' category encompasses websites and online platforms that offer video games, gaming news, forums, and related content. This category may be filtered in certain environments, such as schools or workplaces, to minimize distractions and maintain productivity. Additionally, some gaming sites may contain content that is not suitable for all audiences, prompting administrators to restrict access. | gamespot.com, ign.com, steam.com | Video Gaming |
| Government & Legal | The 'Government & Legal' category encompasses websites that provide information and services related to government entities, legal resources, and public policy. These sites may be filtered in certain environments to prevent access to information that could be deemed inappropriate or sensitive in specific contexts. Additionally, filtering may help maintain focus in workplaces or educational institutions by limiting access to non-educational government content. | usa.gov, justice.gov, nasa.gov | Law Government portals map to Politics > Civic affairs; legal-services firms to Business and Finance > Industries > Legal Services Industry. |
| Hate/Discrimination | The 'Hate/Discrimination' category covers websites that promote hate speech, discrimination, or violence against individuals or groups based on race, ethnicity, religion, gender, sexual orientation, or other characteristics. Such content is often harmful and can create a hostile environment, leading to societal division and conflict. Filtering these websites is crucial to protect users from exposure to harmful ideologies and to promote a safe online experience. | stormfront.org, whitehouse.gov, nazi.org | Sensitive Topics > Hate Speech and Acts of Aggression Brand-unsafe under GARM. |
| Health & Medicine | The 'Health & Medicine' category covers websites that provide information and resources related to health, wellness, medical conditions, treatments, and pharmaceuticals. This category may be filtered to prevent access to potentially misleading or harmful health information, as well as to protect users from inappropriate content related to medical issues. Additionally, it aims to limit distractions in professional or educational environments where accurate health information is critical. | webmd.com, mayoclinic.org, healthline.com | Medical Health |
| Home & Garden | The Home & Garden category encompasses websites related to home improvement, gardening, interior design, and landscaping. This category might be filtered to prevent distractions in a work environment or to limit access to content that may lead to excessive spending on home-related projects. Additionally, some content may not be appropriate for all audiences, prompting organizations to restrict access. | houzz.com, wayfair.com, gardeningknowhow.com | Home & Garden |
| Illegal Drugs | The 'Illegal Drugs' web filtering category encompasses websites that promote, sell, or provide information about illegal substances and drug paraphernalia. This category is filtered to prevent access to content that may encourage drug use, trafficking, or related criminal activities. By blocking these sites, organizations aim to protect users, especially minors, from the dangers associated with illegal drug use and the potential legal ramifications of accessing such content. | drugstore.com, illicitdrugmarket.com, buyillegaldrugs.com | Sensitive Topics > Illegal Drugs, Tobacco, eCigarettes, Vaping, Alcohol Brand-unsafe under GARM. |
| Job Search/Careers | The Job Search/Careers category encompasses websites that provide resources for job seekers, including job listings, resume-building tools, and career advice. This category may be filtered in workplace environments to minimize distractions and maintain productivity, as employees may spend excessive time browsing job opportunities. Additionally, organizations might restrict access to these sites to reduce the risk of employees seeking new employment while on company time. | indeed.com, linkedin.com, monster.com | Careers > Job Search |
| Lingerie/Swimsuits/Intimate Apparel | The 'Lingerie/Swimsuits/Intimate Apparel' category encompasses websites that sell or promote lingerie, swimsuits, and other intimate clothing items. This category may be filtered in various environments, such as workplaces or schools, to maintain a professional or age-appropriate atmosphere. Filtering these sites helps to prevent exposure to potentially inappropriate content that may not align with the values or policies of certain organizations. | victoriassecret.com, bareNecessities.com, aerie.com | Style & Fashion > Women's Fashion > Women's Clothing > Women's Intimates and Sleepwear |
| Malware / Phishing / Suspicious | The 'Malware / Phishing / Suspicious' category covers websites identified as hosting malware, conducting phishing attacks, distributing ransomware, or engaging in other malicious activities. This is a critical security category that is almost universally blocked in enterprise environments. Filtering these sites protects users and organizations from credential theft, malware infections, data breaches, and other cyber threats that can cause significant financial and operational damage. | virustotal.com, urlscan.io, phishtank.org | Sensitive Topics > Spam or Harmful Content Block-list category; no commercial IAB equivalent. |
| Marketplaces / Classifieds / Auctions | The 'Marketplaces / Classifieds / Auctions' category encompasses websites that facilitate peer-to-peer buying, selling, and trading of goods through classified listings, auction platforms, or general-purpose marketplaces. This category may be filtered in workplace environments to prevent distractions from personal shopping and to reduce exposure to potential scams or fraudulent listings commonly found on peer-to-peer trading platforms. | ebay.com, craigslist.org, offerup.com | Shopping |
| Military | The 'Military' web filtering category covers websites related to military organizations, defense contractors, armed forces, and military operations. This category may be filtered in certain environments to maintain a professional atmosphere, prevent the dissemination of sensitive information, or limit access to content that may not be appropriate for all audiences. Websites in this category can include recruiting sites, defense technology, and military news outlets. | military.com, defense.gov, army.mil | War and Conflicts Defense contractors map to Business and Finance > Industries > Defense Industry. |
| News/Media | The News/Media category encompasses websites that provide news articles, opinion pieces, and various forms of media content such as videos and podcasts. This category might be filtered to prevent access to potentially biased or sensationalized information, to reduce distractions in educational or workplace environments, or to avoid exposure to mature content. Filtering this category can help ensure that users access reliable and age-appropriate information. | cnn.com, bbc.com, nytimes.com | Business and Finance > Industries > Media Industry IAB Content Taxonomy 3.0 has no top-level News category; news content is classified per-article by topic. Media Industry is the closest site-level equivalent. |
| Online Banking | The 'Online Banking' category encompasses websites and services that facilitate online financial transactions, including checking account balances, transferring funds, and paying bills. This category might be filtered to protect users from potential phishing attacks, fraud, or unauthorized access to sensitive financial information. Organizations often restrict access to these sites to ensure that employees do not engage in personal banking activities during work hours, which could lead to security vulnerabilities. | bankofamerica.com, chase.com, wellsfargo.com | Personal Finance > Consumer Banking |
| Parked / For-Sale Domains | The 'Parked / For-Sale Domains' category covers websites that are registered but not actively hosting content, typically displaying placeholder pages, domain sale listings, or pay-per-click advertising. This category may be filtered because parked domains are frequently used in typosquatting attacks, phishing campaigns, and malvertising. Blocking access to these sites helps protect users from inadvertently visiting deceptive pages that mimic legitimate websites or serve malicious advertisements. | sedo.com, afternic.com, dan.com | No IAB equivalent No IAB equivalent; parked domains are excluded from content classification. |
| Pets & Animals | The 'Pets & Animals' category includes websites that focus on pet care, animal welfare, and wildlife conservation. This category may be filtered to protect users from content that could promote irresponsible pet ownership, animal cruelty, or misinformation about animal care. Additionally, it can help prevent distractions in educational or workplace environments by limiting access to non-essential pet-related content. | pets.com, petfinder.com, thebark.com | Pets |
| Podcasts | The 'Podcasts' category covers websites and platforms dedicated to hosting, distributing, and streaming podcast content across various topics. This category may be filtered in workplace or educational environments to reduce bandwidth consumption from audio streaming and to minimize distractions. Some organizations may also restrict access to podcast platforms that host unmoderated or controversial content that does not align with organizational policies. | podcasts.apple.com, open.spotify.com, pocketcasts.com | Entertainment IAB 3.0 has no dedicated Podcasts category; podcast content classifies by episode topic. |
| Political | The 'Political' category encompasses websites that primarily focus on political content, including news, commentary, advocacy, and various political movements. This category might be filtered in environments such as schools or workplaces to prevent discussions or distractions related to political ideologies and debates. Filtering these sites may also aim to maintain a neutral environment, avoiding potential conflicts among users with differing political views. | politico.com, cnn.com, foxnews.com | Politics |
| Real Estate | The Real Estate category encompasses websites related to buying, selling, and renting properties, as well as real estate investment and market analysis. This category might be filtered in certain environments to limit distractions or ensure that users are not engaging in non-work-related activities during business hours. Additionally, some organizations may restrict access to these sites to protect sensitive company information or proprietary data related to real estate transactions. | realtor.com, zillow.com, trulia.com | Real Estate |
| Religion & Spirituality | The 'Religion & Spirituality' category encompasses websites that provide information, resources, and discussions related to various religious beliefs, practices, and spiritual experiences. This category may be filtered in certain environments, such as schools or workplaces, to maintain a neutral atmosphere or to prevent the promotion of specific religious views. Additionally, some content within this category may be deemed inappropriate or controversial, leading to filtering to avoid potential conflicts or discomfort among users. | biblegateway.com, beliefnet.com, huffpost.com/religion | Religion & Spirituality |
| Remote Access Tools | The 'Remote Access Tools' category covers websites that provide remote desktop access, remote administration, and remote support software. This category may be filtered to prevent unauthorized remote access to corporate systems, reduce the risk of data exfiltration through remote sessions, and block tools commonly abused by threat actors for command-and-control operations. Organizations may allow only approved remote access solutions while blocking all others. | teamviewer.com, anydesk.com, splashtop.com | Technology & Computing > Computing > Computer Software and Applications Frequently policy-restricted in enterprise environments. |
| Restaurants & Dining | The 'Restaurants & Dining' category includes websites that offer information about restaurants, food delivery services, recipes, and dining experiences. This category might be filtered in certain environments to restrict access to sites that could lead to distractions during work hours or to prevent access to food-related content that may not be appropriate in specific contexts. Additionally, some organizations may want to limit access to online ordering services to reduce time spent on non-work-related activities. | yelp.com, grubhub.com, ubereats.com | Food & Drink > Dining Out |
| Science | The Science category covers websites that provide information and resources related to various scientific fields, including biology, chemistry, physics, and environmental science. This category may be filtered in educational or workplace settings to ensure that users focus on relevant material and avoid distractions. Additionally, some content may include complex theories or controversial topics that are not suitable for all audiences. | nature.com, sciencemag.org, scientificamerican.com | Science |
| Search Engines & Platforms | The 'Search Engines & Platforms' category includes websites that provide search functionality and platforms for accessing a wide range of information. These sites may be filtered to prevent users from accessing inappropriate content or to limit distractions in educational and workplace environments. Filtering this category helps ensure that users engage with content that is deemed suitable for their age and context. | google.com, bing.com, yahoo.com | Technology & Computing > Computing > Internet > Search |
| Shopping | The 'Shopping' category encompasses websites that facilitate online purchasing of goods and services, including retail stores and marketplaces. This category might be filtered in certain environments, such as schools or workplaces, to minimize distractions or prevent unauthorized transactions during work or study hours. Additionally, filtering this category helps to safeguard against potential security risks associated with online shopping. | amazon.com, ebay.com, walmart.com | Shopping |
| Social Networking | The Social Networking category covers websites and platforms that enable users to create personal profiles, connect with friends, and share content. This category may be filtered in certain environments, such as schools or workplaces, to minimize distractions and prevent potential risks associated with inappropriate content or interactions. Additionally, these sites can consume significant bandwidth and may expose users to privacy concerns and cyberbullying. | facebook.com, twitter.com, instagram.com | Technology & Computing > Computing > Internet > Social Networking |
| Sports & Recreation | The 'Sports & Recreation' category encompasses websites that focus on various sports, physical activities, fitness, and outdoor recreation. This category may be filtered in certain environments to prevent distractions or to limit access to content that could be deemed inappropriate or excessive during work or study hours. Additionally, some organizations may filter this category to promote a more productive and focused online environment. | espn.com, bleacherreport.com, sports.yahoo.com | Sports |
| Streaming Media | The 'Streaming Media' category encompasses websites and services that provide audio and video content streamed over the internet. This category may be filtered in organizational settings to manage bandwidth usage, maintain productivity, and ensure compliance with acceptable use policies. Streaming media can consume significant network resources and may distract users from their work or educational activities. | youtube.com, netflix.com, twitch.tv | Entertainment Maps to Entertainment > Movies, Entertainment > Television, or Entertainment > Music depending on the service. |
| Tobacco | The Tobacco category includes websites that promote, sell, or discuss tobacco products and related items. This category is often filtered to prevent exposure to harmful substances and discourage tobacco use, especially among minors. Additionally, many organizations aim to reduce smoking rates and protect public health by limiting access to tobacco-related content online. | tobacco.com, nicotine.com, cigarettes.com | Sensitive Topics > Illegal Drugs, Tobacco, eCigarettes, Vaping, Alcohol Brand-unsafe under GARM. |
| Travel | The Travel category encompasses websites related to travel booking, tourist information, and travel reviews. These sites may be filtered to prevent distractions during work hours or to restrict access to travel-related content that could lead to non-productive behavior. Additionally, some organizations may filter this category to ensure that employees are not accessing potentially unsafe or unverified travel information. | expedia.com, booking.com, tripadvisor.com | Travel |
| URL Shorteners | The 'URL Shorteners' category covers websites that provide URL shortening and redirection services. This category may be filtered because shortened URLs obscure the true destination, making them a common vector for phishing attacks, malware distribution, and circumventing other web filtering rules. Organizations may block URL shorteners to maintain visibility into where users are navigating and to prevent employees from bypassing content filters through redirected links. | bit.ly, tinyurl.com, t.co | Technology & Computing > Computing > Internet Often policy-restricted because destination is opaque. |
| Violence | The 'Violence' web filtering category encompasses content that depicts or promotes acts of violence, aggression, or harm against individuals or groups. This includes graphic images, videos, and discussions that may incite violence or glorify violent behavior. Filtering this category is often implemented to protect users, especially minors, from exposure to disturbing or harmful content. | violentvideos.com, extremeviolence.com, fightclub.com | Sensitive Topics > Death, Injury, or Military Conflict Brand-unsafe under GARM. |
| VPN / Proxy / Anonymizers | The 'VPN / Proxy / Anonymizers' category covers websites that provide virtual private network services, web proxies, anonymizing tools, and privacy-focused browsing solutions. This category is commonly filtered in enterprise and educational environments because these tools can be used to bypass web filtering policies, obscure browsing activity from network monitoring, and circumvent geographic restrictions. Blocking access helps maintain the integrity of an organization's security and acceptable use policies. | nordvpn.com, expressvpn.com, protonvpn.com | Technology & Computing > Computing > Information and Network Security Commonly blocked in enterprise/school policies. |
| Weapons | The 'Weapons' category encompasses websites that promote, sell, or provide information about firearms, explosives, and other weapons. This category is often filtered to prevent access to potentially dangerous content that could lead to illegal activities or the promotion of violence. Additionally, filtering helps maintain a safe online environment, especially in educational institutions and workplaces. | gunbroker.com, armslist.com, cheaperthandirt.com | Sensitive Topics > Arms & Ammunition Brand-unsafe under GARM. |
| Web-based Applications | The 'Web-based Applications' category encompasses a variety of online tools and platforms that facilitate tasks such as project management, document editing, and collaboration. These applications may be filtered to prevent distractions or misuse during work or educational hours. Additionally, organizations may restrict access to protect sensitive information and maintain network security. | google.com, dropbox.com, slack.com | Technology & Computing > Computing > Computer Software and Applications > Web Conferencing Maps to the specific application type where known. |
| Webinars/E-learning | The 'Webinars/E-learning' category encompasses websites that offer online learning resources, including webinars, courses, and educational materials. This category might be filtered in certain environments to prevent distractions during work or to ensure that users are not accessing unapproved educational content. It is essential for organizations to manage access to such resources to maintain productivity and focus on core tasks. | coursera.org, edx.org, udemy.com | Education > Online Education |
Three taxonomies are supported: the official IAB Content Taxonomy 3.0 with 703 categories across 36 Tier-1 groups (up to 4 tiers deep, with official IAB Tech Lab IDs), the IAB v2 taxonomy with 699 category paths, and a 58-category web content filtering taxonomy.
Yes — all taxonomies and the filtering-to-IAB mapping are free to download in JSON and CSV from the downloads section above. The classified URL databases built on these taxonomies (up to 102M domains) are commercial products.
IAB Content Taxonomy 3.0 is the current IAB Tech Lab standard with 703 categories and official unique IDs; it restructured entertainment content under an Entertainment branch and added top-level categories such as Crime, Disasters, Law, and War and Conflicts. The v2 taxonomy (699 paths) is the previous generation, still widely used in adtech integrations. The API supports both.
Use the 58-category filtering taxonomy for security products, DNS filtering, and access control — it includes operational categories such as Malware/Phishing, VPN/Proxy, and Parked Domains. Use the IAB Content Taxonomy (v3 recommended) for advertising, contextual targeting, and brand safety, where it is the industry standard.
Three options: the real-time categorization API, the offline URL categorization databases (up to 102M pre-classified domains), or the MCP server for AI agents.