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 89 other categories.
Tremor Media is leading in Accommodation & Hotels, Nutrition, Social Sciences, Military & Defense and 2 other categories.
SpotX is leading in most countries, including United States, Germany, Netherlands, Spain and 44 other countries.
Tremor Media is leading in Serbia, Ghana, Georgia and Croatia.