SpotX is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
SpotX has better usage coverage in more websites categories. Including News & Media, Arts & Entertainment, Autos & Vehicles, Car Buying and 99 other categories.
WebTrends Ads is leading in Law & Government, Law, Business Services, Industrial Goods & Services and 5 other categories.
SpotX is leading in most countries, including United States, Germany, Netherlands, Spain and 45 other countries.
WebTrends Ads is leading in Costa Rica, Guatemala, Australia, China and 4 other countries.