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, Car Buying and 84 other categories.
Yieldr is leading in Travel, Office Products, Accommodation & Hotels, Airlines & Airports and 2 other categories.
SpotX is leading in most countries, including United States, Netherlands, Germany, Spain and 42 other countries.
Yieldr is leading in Greece.