An advertising technology platform providing header bidding integration and programmatic demand for publishers. Red Volcano tracks 137,381 publisher websites using OTM, with data refreshed weekly from proprietary crawlers.
The highest-ranked websites using OTM, 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 | microsoft.com | #33 | 1,209,647,729 | United States | Computers Electronics And Technology |
| 3 | ebay.com | #42 | 666,753,176 | United States | E-Commerce And Shopping |
| 4 | bbc.com | #88 | 552,030,429 | United States | News And Media |
| 5 | cnn.com | #104 | 490,866,410 | United States | News And Media |
| 6 | spankbang.com | #107 | 224,100,602 | Japan | Adult |
| 7 | target.com | #155 | 207,203,241 | United States | E-Commerce And Shopping |
| 8 | allegro.pl | #162 | 149,012,231 | Poland | E-Commerce And Shopping |
| 9 | indiatimes.com | #167 | 272,491,301 | India | News And Media |
| 10 | livedoor.jp | #287 | 159,743,578 | Japan | News And Media |
| 11 | realtor.com | #288 | 111,016,092 | United States | Business And Consumer Services |
| 12 | nextdoor.com | #294 | 165,616,449 | United States | Computers Electronics And Technology |
| 13 | goodreads.com | #335 | 100,099,833 | United States | Science And Education |
| 14 | gismeteo.ru | #336 | 143,681,281 | Russia | Science And Education |
| 15 | researchgate.net | #347 | 102,524,597 | United States | Science And Education |
| 16 | nicovideo.jp | #353 | 100,898,803 | Japan | Arts And Entertainment |
| 17 | elpais.com | #378 | 134,491,945 | Spain | News And Media |
| 18 | repubblica.it | #392 | 122,115,214 | Italy | News And Media |
| 19 | gamer.com.tw | #417 | 95,470,752 | Taiwan | Games |
| 20 | douban.com | #436 | 67,885,781 | China | Arts And Entertainment |
| 21 | rbc.ru | #461 | 122,069,178 | Russia | News And Media |
| 22 | crazygames.com | #473 | 94,130,170 | United States | Games |
| 23 | bookmyshow.com | #474 | 79,250,872 | India | Arts And Entertainment |
| 24 | azure.com | #494 | 54,271,064 | United States | Computers Electronics And Technology |
| 25 | pikabu.ru | #495 | 102,227,705 | Russia | Arts And Entertainment |
| 26 | go.com | #502 | 95,975,645 | United States | Arts And Entertainment |
| 27 | apnews.com | #505 | 114,184,974 | United States | News And Media |
| 28 | next.co.uk | #542 | 34,739,304 | United Kingdom | Lifestyle |
| 29 | nypost.com | #551 | 100,265,882 | United States | News And Media |
| 30 | cnbc.com | #557 | 112,773,444 | United States | News And Media |
| 31 | reverso.net | #561 | 43,347,245 | France | Reference Materials |
| 32 | lokmat.com | #567 | 84,490,298 | India | News And Media |
| 33 | lemonde.fr | #588 | 84,525,310 | France | News And Media |
| 34 | cbsnews.com | #596 | 98,151,638 | United States | News And Media |
| 35 | pornone.com | #613 | 52,961,371 | United States | Adult |
| 36 | curseforge.com | #616 | 43,573,907 | United States | Games |
| 37 | reuters.com | #632 | 97,243,469 | United States | News And Media |
| 38 | clickpetroleoegas.com.br | #655 | 93,422,168 | Brazil | News And Media |
| 39 | animeflv.net | #690 | 65,827,025 | Mexico | Arts And Entertainment |
| 40 | flashscore.com | #709 | 51,982,989 | Indonesia | Sports |
| 41 | protothema.gr | #713 | 91,243,523 | Country 300 | News And Media |
| 42 | rozetka.com.ua | #722 | 51,472,877 | Ukraine | E-Commerce And Shopping |
| 43 | gsmarena.com | #750 | 58,403,287 | India | Computers Electronics And Technology |
| 44 | immobilienscout24.de | #754 | 38,919,686 | Germany | Business And Consumer Services |
| 45 | ria.ru | #770 | 66,689,922 | Russia | News And Media |
| 46 | drive2.ru | #779 | 67,107,474 | Russia | Vehicles |
| 47 | sportbox.ru | #814 | 70,870,131 | Russia | Sports |
| 48 | op.gg | #820 | 62,159,804 | South Korea | Games |
| 49 | vimeo.com | #834 | 56,497,420 | United States | Arts And Entertainment |
| 50 | magazineluiza.com.br | #873 | 49,744,980 | Brazil | E-Commerce And Shopping |
Want the full list of 137,381 sites using OTM? Filter, export, and monitor.
Book a Demo →Geographic distribution of OTM adoption across publisher websites. Shows the top markets where publishers have integrated this technology.
Which content categories show the highest adoption of OTM. 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 OTM, based on ads.txt and sellers.json analysis.
Red Volcano provides complete data on all 137,381 publishers using OTM — 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, 137,381 publisher websites currently use OTM. 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 OTM 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 OTM most commonly also use Index Exchange, TheMediaGrid, AJA, vi, Tim Media. These co-occurring technologies indicate the typical header bidding and monetization stack of publishers in this segment.
The most common publisher vertical using OTM 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 OTM 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.