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, Car Buying, News & Media and 86 other categories.
Yieldr is leading in Travel, Accommodation & Hotels, Airlines & Airports, Telecommunications and 2 other categories.
SpotX is leading in most countries, including United States, Netherlands, Germany, Russia and 40 other countries.
Yieldr is leading in Malta and Finland.