SpotX is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
SpotX has better usage coverage in more websites categories. Including Arts & Entertainment, News & Media, Autos & Vehicles, Sports and 67 other categories.
Undertone Networks is leading in People & Society, Business & Industry, Religion & Spirituality, Shopping and 45 other categories.
SpotX is leading in most countries, including United States, Germany, Netherlands, Spain and 38 other countries.
Undertone Networks is leading in Canada, Japan, Australia, Poland and 10 other countries.