UOL's advertising platform, one of Brazil's largest digital media companies providing regional programmatic demand. Red Volcano tracks 83,112 publisher websites using UOL, with data refreshed weekly from proprietary crawlers.
The highest-ranked websites using UOL, sorted by global traffic rank. Technology detection is based on Red Volcano's weekly crawl of ads.txt files, header bidding configurations, and JavaScript tag analysis.
| # | Domain | Global Rank | Monthly Pageviews | Country | Category |
|---|---|---|---|---|---|
| 1 | reddit.com | #8 | 4,385,329,502 | United States | Computers Electronics And Technology |
| 2 | yahoo.com | #15 | 2,873,425,636 | United States | News And Media |
| 3 | ebay.com | #42 | 666,753,176 | United States | E-Commerce And Shopping |
| 4 | weather.com | #46 | 1,108,313,929 | United States | Science And Education |
| 5 | imdb.com | #61 | 552,104,293 | United States | Arts And Entertainment |
| 6 | globo.com | #67 | 851,603,999 | Brazil | News And Media |
| 7 | espn.com | #89 | 511,589,368 | United States | Sports |
| 8 | outbrain.com | #104 | 207,590,388 | Germany | Computers Electronics And Technology |
| 9 | craigslist.org | #138 | 113,939,213 | United States | E-Commerce And Shopping |
| 10 | accuweather.com | #143 | 304,613,589 | United States | Science And Education |
| 11 | uol.com.br | #148 | 248,121,697 | Brazil | News And Media |
| 12 | target.com | #155 | 207,203,241 | United States | E-Commerce And Shopping |
| 13 | indiatimes.com | #167 | 272,491,301 | India | News And Media |
| 14 | cricbuzz.com | #182 | 332,040,248 | India | Sports |
| 15 | shopee.co.id | #209 | 133,256,689 | Indonesia | E-Commerce And Shopping |
| 16 | auone.jp | #226 | 206,010,501 | Japan | News And Media |
| 17 | marca.com | #228 | 224,244,881 | Spain | Sports |
| 18 | dailymail.co.uk | #232 | 216,091,245 | United Kingdom | News And Media |
| 19 | tabelog.com | #264 | 126,049,108 | Japan | Food And Drink |
| 20 | nextdoor.com | #294 | 165,616,449 | United States | Computers Electronics And Technology |
| 21 | vnexpress.net | #308 | 130,711,082 | Vietnam | News And Media |
| 22 | syosetu.com | #313 | 113,819,422 | Japan | Arts And Entertainment |
| 23 | lowes.com | #317 | 111,708,101 | United States | Home And Garden |
| 24 | trilltrill.jp | #318 | 184,689,066 | Japan | Food And Drink |
| 25 | investing.com | #329 | 160,696,387 | Turkey | Finance |
| 26 | goodreads.com | #335 | 100,099,833 | United States | Science And Education |
| 27 | gismeteo.ru | #336 | 143,681,281 | Russia | Science And Education |
| 28 | researchgate.net | #347 | 102,524,597 | United States | Science And Education |
| 29 | elpais.com | #378 | 134,491,945 | Spain | News And Media |
| 30 | elmundo.es | #388 | 119,970,947 | Spain | News And Media |
| 31 | usatoday.com | #390 | 133,435,865 | United States | News And Media |
| 32 | repubblica.it | #392 | 122,115,214 | Italy | News And Media |
| 33 | ruliweb.com | #408 | 63,108,325 | South Korea | Games |
| 34 | aajtak.in | #416 | 127,864,528 | India | News And Media |
| 35 | speedtest.net | #430 | 115,554,690 | India | Computers Electronics And Technology |
| 36 | detik.com | #431 | 118,613,592 | Indonesia | News And Media |
| 37 | tbs.co.jp | #434 | 101,095,212 | Japan | Arts And Entertainment |
| 38 | redgifs.com | #435 | 70,020,600 | United States | Adult |
| 39 | douban.com | #436 | 67,885,781 | China | Arts And Entertainment |
| 40 | gamewith.jp | #445 | 112,604,083 | Japan | Games |
| 41 | hurriyet.com.tr | #457 | 90,059,809 | Turkey | News And Media |
| 42 | donga.com | #481 | 62,624,331 | South Korea | News And Media |
| 43 | pikabu.ru | #495 | 102,227,705 | Russia | Arts And Entertainment |
| 44 | game8.jp | #498 | 96,463,508 | Japan | Games |
| 45 | yomiuri.co.jp | #500 | 86,137,110 | Japan | News And Media |
| 46 | go.com | #502 | 95,975,645 | United States | Arts And Entertainment |
| 47 | ukr.net | #509 | 83,668,330 | Ukraine | News And Media |
| 48 | livedoor.com | #510 | 100,155,438 | Japan | News And Media |
| 49 | lefigaro.fr | #520 | 95,873,920 | France | News And Media |
| 50 | economictimes.com | #522 | 108,769,055 | India | Finance |
Want the full list of 83,112 sites using UOL? Filter, export, and monitor.
Book a Demo →Geographic distribution of UOL adoption across publisher websites. Shows the top markets where publishers have integrated this technology.
Which content categories show the highest adoption of UOL. Understanding vertical distribution helps SSPs and ad networks identify where this technology is most prevalent.
The most common SSP and monetization partnerships among publishers using UOL, based on ads.txt and sellers.json analysis.
Red Volcano provides complete data on all 83,112 publishers using UOL — with filters by country, vertical, traffic, and SSP relationships. Export lists, set up monitoring alerts, and access via API.
According to Red Volcano's data, 83,112 publisher websites currently use UOL. This number is updated weekly based on our proprietary web crawlers that scan ads.txt files, JavaScript tags, and header bidding configurations across 32M+ websites.
The highest adoption of UOL is in United States, followed by other major digital advertising markets. Red Volcano tracks geographic distribution across 190+ countries, with detailed breakdowns available through our platform.
Publishers using UOL most commonly also use TheMediaGrid, Criteo, Index Exchange, AJA, OpenX. These co-occurring technologies indicate the typical header bidding and monetization stack of publishers in this segment.
The most common publisher vertical using UOL is News And Media. Red Volcano provides detailed category breakdowns showing adoption patterns across news, entertainment, sports, technology, and dozens of other verticals.
Red Volcano detects UOL through a combination of ads.txt analysis, JavaScript header bidding wrapper detection, sellers.json cross-referencing, and proprietary crawler technology. Our data is refreshed weekly to ensure accuracy.