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, Autos & Vehicles, News & Media, Car Buying and 98 other categories.
Tremor Media is leading in Video Games, Nutrition, Martial Arts, Law & Government and 6 other categories.
SpotX is leading in most countries, including United States, Netherlands, Sweden, Germany and 49 other countries.
Tremor Media is leading in China, Croatia, Ghana, Austria and 4 other countries.