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, Music & Audio and 61 other categories.
Undertone Networks is leading in People & Society, News & Media, Business & Industry, Sports and 49 other categories.
SpotX is leading in most countries, including United States, Sweden, Netherlands, Russia and 35 other countries.
Undertone Networks is leading in United Kingdom, Canada, Poland, Turkey and 14 other countries.