This page documents every category system found in the URL Categorization Database, which labels more than 120 million domains. Each domain record carries an IAB Content Taxonomy 3.0 value (703 entries bearing official IAB Tech Lab IDs, arranged in 36 Tier-1 groups over four tiers), a legacy IAB v2 value (699 paths), and one of 58 web content filtering classes built for DNS filtering, secure web gateways, and network security. A crosswalk ties every filtering class to its nearest IAB 3.0 entry. The reference tables below are free in JSON and CSV form — only the classified domain data itself is a paid product.
All four exports are free for any use (a mention of urlcategorizationdatabase.com is appreciated). URLs are permanent, so scripts and agents can fetch them directly.
Digital advertising describes page and site content in terms of the IAB Content Taxonomy, and
version 3.0 is the current IAB Tech Lab release: 703 entries, 36 Tier-1 groups, four levels of depth, and an official unique ID on every node. In the database these
appear as full paths — Automotive > Auto Type > Luxury Cars, for instance —
in the IAB v3 column of each record.
| 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 |
The filtering scheme exists for a different job than the IAB taxonomy: enforcing access policy on
networks. That is why it contains operational classes with no advertising counterpart —
Malware / Phishing / Suspicious, VPN / Proxy / Anonymizers,
Parked / For-Sale Domains, URL Shorteners. The right-hand column gives the
nearest IAB 3.0 entry for each class, taken from the downloadable crosswalk.
| Category | Description | Example domains | Closest IAB 3.0 category |
|---|---|---|---|
| Adult | Domains whose primary purpose is sexually explicit content, including pornography and adult entertainment networks. In the database this label is assigned conservatively, since downstream consumers use it for hard blocking and ad-exclusion lists. | adultfriendfinder.com, xhamster.com, redtube.com | Sensitive Topics > Adult & Explicit Sexual Content Listed among GARM/IAB sensitive topics; advertisers exclude it by default. |
| Advertising/Marketing | Domains operated by ad networks, tracking services, marketing agencies, and campaign landing infrastructure. Classifying these separately lets analytics pipelines strip promotional noise from audience and traffic datasets. | adroll.com, hubspot.com, mailchimp.com | Business and Finance > Business > Marketing and Advertising |
| AI / LLM Tools | Domains offering artificial intelligence services: LLM chat interfaces, generation tools, model APIs, and ML platforms. A fast-growing segment of the database, tracked closely because new AI tools register domains at a high rate. | gemini.google.com, perplexity.ai, huggingface.co | Technology & Computing > Artificial Intelligence |
| Alcohol | Domains selling or promoting alcoholic beverages — breweries, distilleries, wine merchants, and drinks media. Labeled distinctly from general food content so age-restricted and regulated-advertising use cases can isolate it. | totalwine.com, bevmo.com, wine.com | Food & Drink > Alcoholic Beverages For ad targeting this doubles as a GARM/IAB sensitive topic. |
| Arts & Entertainment | Domains covering culture and entertainment: galleries, theaters, celebrity news, and event media. In classification terms a broad umbrella that applies when no narrower entertainment label fits better. | pitchfork.com, broadway.com, metacritic.com | Fine Art Fine Art is the default; sites dominated by film, music, or TV content map to the corresponding Entertainment > Movies / Entertainment > Music / Entertainment > Television paths. |
| Automotive & Transportation | Domains for vehicle makers, dealers, parts commerce, logistics operators, and transport services. Widely used by advertisers building automotive audience segments from the database. | edmunds.com, caranddriver.com, motortrend.com | Automotive |
| Blogs/Personal Sites | Individually operated domains: personal blogs, portfolios, and hobbyist writing. Assigned when a site's defining trait is its personal authorship rather than a specific commercial topic. | tumblr.com, medium.com, livejournal.com | Hobbies & Interests > Content Production In the database, blogs usually receive the IAB label of their main subject; this row covers the untyped remainder. |
| Business | Corporate presences, professional services firms, and B2B vendors. One of the largest classes in the database; enrichment fields such as technology stack and company data add resolution within it. | businessinsider.com, harvardbusinessreview.com, inc.com | Business and Finance > Business |
| CDN / Hosting / Infrastructure | Domains belonging to delivery networks, hosting platforms, DNS providers, and other web plumbing. Separating infrastructure from content domains keeps traffic analytics and referral data clean. | akamai.com, digitalocean.com, godaddy.com | Technology & Computing > Computing > Internet > Web Hosting |
| Cloud Storage / File Hosting | Domains providing file storage, sync, and sharing services. Security-oriented consumers of the database treat this class as a data-exfiltration watchlist; analytics consumers use it to segment SaaS traffic. | onedrive.live.com, box.com, mega.nz | Technology & Computing > Computing > Data Storage and Warehousing |
| Community Sites | Domains hosting interest-based communities, clubs, and membership groups. Distinguished from social networks by their narrower focus on a shared topic or activity. | twitter.com, linkedin.com, tumblr.com | Technology & Computing > Computing > Internet > Social Networking |
| Computers & Technology | Domains about hardware, software, IT services, and technology journalism. A cornerstone category for B2B targeting and tech-industry market research built on the database. | tomshardware.com, arstechnica.com, zdnet.com | Technology & Computing |
| Cryptocurrency | Domains for exchanges, wallets, tokens, mining, and crypto media. Maintained as its own class rather than folded into finance, because risk profiles and regulatory treatment differ sharply. | coinmarketcap.com, kraken.com, ethereum.org | Business and Finance > Economy > Currencies |
| Dating | Domains running matchmaking and personals services. A compact, well-defined class that filtering customers block and advertising customers target — the database supports both. | bumble.com, okcupid.com, hinge.co | Family and Relationships > Dating |
| Developer Tools / Code Hosting | Domains offering repositories, package registries, build services, and developer utilities. Useful as a firmographic signal: heavy developer-tool referral traffic marks engineering-driven organizations. | bitbucket.org, stackoverflow.com, npmjs.com | Technology & Computing > Computing > Computer Software and Applications |
| Education/Reference | Domains of academic institutions, reference works, and learning resources. Consistently among the most trusted classes, used to build allow-lists for child-safe environments. | study.com, coursera.org, edx.org | Education |
| Email and Messaging | Domains delivering webmail and browser-based messaging. Kept separate from general web apps because mail endpoints matter to both security policy and communications analytics. | outlook.com, whatsapp.com, slack.com | Technology & Computing > Computing > Internet > Email |
| File Sharing/P2P | Domains indexing torrents or coordinating peer-to-peer distribution. Labeled distinctly from cloud storage because the legal and malware risk profile differs fundamentally. | torrentz2.eu, rarbg.to, nyaa.si | Technology & Computing > Computing > Internet Sensitive Topics > Online Piracy applies when the service is piracy-oriented. |
| Financial Services | Domains of lenders, insurers, brokerages, and financial advice publishers. High-value for fraud teams cross-referencing the database, since phishing infrastructure imitates this class constantly. | wellsfargo.com, paypal.com, intuit.com | Personal Finance Business and Finance > Industries > Financial Industry fits B2B providers better than the consumer path. |
| Food & Drink | Domains for recipes, food media, and beverage brands. A stable lifestyle class used mainly for contextual ad placement and consumer research. | epicurious.com, bonappetit.com, seriouseats.com | Food & Drink |
| Forums / Message Boards | Domains structured around threaded discussion. The classifier assigns this label from page structure and interaction patterns, independent of the forum's subject matter. | stackexchange.com, discourse.org, phpbb.com | Technology & Computing > Computing > Internet > Social Networking |
| Freeware/Software | Domains distributing free and shareware applications. Download portals cluster here; reputation-scoring consumers weight this class carefully due to bundled-installer abuse. | filehippo.com, softpedia.com, majorgeeks.com | Technology & Computing > Computing > Computer Software and Applications > Shareware and Freeware |
| Gambling | Domains operating betting, casino, poker, and lottery services. Jurisdiction-sensitive: many database customers combine this label with country data to enforce regional gambling rules. | draftkings.com, 888casino.com, williamhill.com | Sports > Poker and Professional Gambling Treated as a sensitive vertical by IAB/GARM; brick-and-mortar casino domains map to Attractions > Casinos & Gambling. |
| Gaming | Domains for game publishers, online play, esports, and gaming media. Popular for audience targeting; the class spans AAA publishers to small browser-game portals. | steam.com, epicgames.com, pokernight.com | Video Gaming |
| Government & Legal | Official public-sector domains and legal information services. Verified government presences anchor trust models built on top of the database. | nasa.gov, congress.gov, irs.gov | Law Split in practice: Politics > Civic affairs covers government portals, Business and Finance > Industries > Legal Services Industry covers legal practices. |
| Hate/Discrimination | Domains dedicated to demeaning or attacking protected groups. Assigned after careful review signals, since the label triggers automatic blocking in nearly every downstream deployment. | nazi.org, kkk.com, hatewatch.org | Sensitive Topics > Hate Speech and Acts of Aggression A GARM brand-unsafe class. |
| Health & Medicine | Domains of healthcare providers, medical references, and wellness publishers. Sensitive-topic handling applies: advertisers use it for compliance exclusions as much as for targeting. | healthline.com, nih.gov, who.int | Medical Health |
| Home & Garden | Domains covering home improvement, décor, gardening, and related retail. A quiet, low-churn class valuable for retail and lifestyle segmentation. | gardeningknowhow.com, bhg.com, homeadvisor.com | Home & Garden |
| Illegal Drugs | Domains promoting or facilitating controlled-substance trade. One of the mandatory-block classes; database consumers in regulated industries depend on its accuracy for compliance. | buyillegaldrugs.com, drugdealers.com, illegaldrugsupply.com | Sensitive Topics > Illegal Drugs, Tobacco, eCigarettes, Vaping, Alcohol A GARM brand-unsafe class. |
| Job Search/Careers | Domains hosting job listings, recruiting platforms, and career content. HR-tech and labor-market analytics customers use this class to track hiring activity across the web. | monster.com, careerbuilder.com, glassdoor.com | Careers > Job Search |
| Lingerie/Swimsuits/Intimate Apparel | Retail domains for intimate apparel and swimwear. Split out from general fashion so brand-safety and age-gating policies can treat it separately without touching explicit-content labels. | aerie.com, hottopic.com, fredericks.com | Style & Fashion > Women's Fashion > Women's Clothing > Women's Intimates and Sleepwear |
| Malware / Phishing / Suspicious | Domains exhibiting malicious behavior: malware distribution, credential phishing, or attack-infrastructure fingerprints. The database's highest-priority security class, refreshed aggressively because these domains are short-lived. | phishtank.org, malwarebytes.com, abuse.ch | Sensitive Topics > Spam or Harmful Content Security-only class with no advertising-taxonomy analogue. |
| Marketplaces / Classifieds / Auctions | Domains where third parties list, sell, and bid on goods. Distinguished from single-brand shops because marketplace dynamics matter to fraud, pricing, and competitive analysis. | offerup.com, mercari.com, poshmark.com | Shopping |
| Military | Domains of armed services, defense agencies, and military-focused media. A small, stable class relevant mostly to government and OSINT users of the database. | army.mil, navy.mil, airforce.com | War and Conflicts Contractor and supplier domains map to Business and Finance > Industries > Defense Industry. |
| News/Media | Domains of newspapers, broadcasters, and digital publishers. Heavily used for contextual advertising and misinformation research; publisher-level granularity comes from the enrichment fields. | nytimes.com, foxnews.com, reuters.com | Business and Finance > Industries > Media Industry Version 3.0 of the IAB taxonomy classifies news per article rather than per site, leaving Media Industry as the closest domain-level equivalent. |
| Online Banking | Domains serving bank login and account management. Kept as a precise class so anti-phishing systems can whitelist genuine banking endpoints and challenge lookalikes. | wellsfargo.com, citibank.com, capitalone.com | Personal Finance > Consumer Banking |
| Parked / For-Sale Domains | Registered domains with placeholder or sale pages and no substantive content. Roughly a fifth of the registered web at any time — labeling them keeps content analytics honest and flags churn-prone infrastructure. | dan.com, hugedomains.com, bodis.com | No IAB equivalent Unmapped by design: a parked page has no content for the IAB taxonomy to describe. |
| Pets & Animals | Domains for pet care, veterinary services, animal welfare, and related retail. A benign consumer class used for niche audience building. | thebark.com, animalplanet.com, akc.org | Pets |
| Podcasts | Domains hosting or indexing podcast content. Identified separately from general streaming so audio-specific advertising and analytics products can isolate the medium. | pocketcasts.com, overcast.fm, anchor.fm | Entertainment Podcast platforms lack a dedicated IAB 3.0 node; episode subjects drive per-content classification. |
| Political | Domains of parties, campaigns, advocacy organizations, and political commentary. Election-cycle sensitive: the class grows sharply before major votes and is monitored for coordinated registration bursts. | foxnews.com, thehill.com, bbc.com | Politics |
| Real Estate | Domains for property listings, brokerages, and rental platforms. Geography-rich: combined with the database's country data it supports regional property-market analysis. | trulia.com, redfin.com, loopnet.com | Real Estate |
| Religion & Spirituality | Domains of faith communities, scripture resources, and spiritual practice. A stable class handled as sensitive in advertising contexts and open in filtering ones. | huffpost.com/religion, religionnews.com, patheos.com | Religion & Spirituality |
| Remote Access Tools | Domains distributing remote desktop and remote administration software. Security consumers treat unexpected traffic to this class as an incident signal, so labeling precision matters. | splashtop.com, remotedesktop.google.com, logmein.com | Technology & Computing > Computing > Computer Software and Applications A class enterprises often gate behind explicit approval. |
| Restaurants & Dining | Domains for restaurants, delivery platforms, and dining discovery. Local-business heavy, which makes it a favorite class for location-based marketing datasets. | ubereats.com, foodnetwork.com, openTable.com | Food & Drink > Dining Out |
| Science | Domains of research institutions, journals, and science publishing. Trusted reference content, often paired with Education in allow-list construction. | scientificamerican.com, pnas.org, newscientist.com | Science |
| Search Engines & Platforms | Domains operating general search and major platform gateways. A tiny class by domain count with enormous traffic share — separated so platform traffic never skews content-category statistics. | yahoo.com, duckduckgo.com, baidu.com | Technology & Computing > Computing > Internet > Search |
| Shopping | E-commerce domains selling directly to consumers. The database's enrichment layer (technology stack, company data) adds merchant-level detail on top of this broad retail label. | walmart.com, target.com, etsy.com | Shopping |
| Social Networking | Domains of social platforms built on user profiles, feeds, and follower graphs. Labeled distinctly from forums and communities; downstream policy treatment differs across all three. | instagram.com, linkedin.com, snapchat.com | Technology & Computing > Computing > Internet > Social Networking |
| Sports & Recreation | Domains covering teams, leagues, scores, fitness, and outdoor activity. Seasonal traffic patterns make this class useful for time-aware audience products. | sports.yahoo.com, nbcsports.com, si.com | Sports |
| Streaming Media | Domains delivering on-demand or live video and music. Classified by delivery model rather than content genre; the IAB mapping supplies genre-level detail when needed. | twitch.tv, vimeo.com, hulu.com | Entertainment Service type decides the mapping: Entertainment > Movies, Entertainment > Television, or Entertainment > Music. |
| Tobacco | Domains selling or promoting tobacco and vaping products. A regulated-goods class that advertising customers exclude by default and compliance teams audit against. | cigarettes.com, smokeshop.com, vaping.com | Sensitive Topics > Illegal Drugs, Tobacco, eCigarettes, Vaping, Alcohol A GARM brand-unsafe class. |
| Travel | Domains of airlines, lodging, booking engines, and destination content. Rich in intent signal: travel-class visits feed demand forecasting and campaign timing models. | tripadvisor.com, airbnb.com, travelocity.com | Travel |
| URL Shorteners | Domains providing link-shortening and redirection. The label marks the shortener itself; resolving the final destination is left to the consuming application, which is why the class exists at all. | t.co, ow.ly, is.gd | Technology & Computing > Computing > Internet The redirect hides the target, which is why policies treat the class cautiously. |
| Violence | Domains centered on graphic or glorified depictions of violence. A safeguarding class assigned with high-precision thresholds because of its automatic-block consequences downstream. | fightclub.com, crimescene.com, gorehub.com | Sensitive Topics > Death, Injury, or Military Conflict A GARM brand-unsafe class. |
| VPN / Proxy / Anonymizers | Domains offering VPNs, proxies, and anonymization. Policy-critical: on managed networks this class is the canonical filter-evasion list, so coverage and freshness are prioritized. | protonvpn.com, torproject.org, hidemyass.com | Technology & Computing > Computing > Information and Network Security Standard block entry in managed-network policies. |
| Weapons | Domains selling firearms, ammunition, and weapon accessories. Regionally regulated; consumers typically pair the label with jurisdiction data before acting on it. | cheaperthandirt.com, palmettostatearmory.com, cabelas.com | Sensitive Topics > Arms & Ammunition A GARM brand-unsafe class. |
| Web-based Applications | Domains delivering browser-based tools and SaaS utilities. A catch-all for functional web software that lacks a more specific class, refined over time as sub-classes graduate out. | slack.com, zoom.us, asana.com | Technology & Computing > Computing > Computer Software and Applications > Web Conferencing Falls through to a more precise IAB software path whenever the tool type is known. |
| Webinars/E-learning | Domains hosting online courses, corporate training, and live webinar delivery. Growing steadily; distinguished from general education by its delivery-platform character. | udemy.com, zoom.us, webinar.net | Education > Online Education |
Three: an IAB Content Taxonomy 3.0 value (703 possible entries, each with an official IAB Tech Lab ID, in 36 Tier-1 groups), a legacy IAB v2 value (699 paths), and one of 58 web content filtering classes.
Yes. JSON and CSV exports of all four reference tables sit in the downloads section; fetch them as often as you like. The paid part is the classified domain data itself — 120M+ labeled domains in the database product.
Start with the database explorer to inspect samples, then pick a tier on the pricing page (CSV tiers start at 5M domains), or wire up the categorization API for per-domain lookups.