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 68 other categories.
Undertone Networks is leading in People & Society, Shopping, Business & Industry, Religion & Spirituality and 45 other categories.
SpotX is leading in most countries, including Germany, Netherlands, Spain, Russia and 43 other countries.
Undertone Networks is leading in United States, Poland, Japan, Australia and 8 other countries.