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 70 other categories.
Vocus is leading in Business & Industry, People & Society, Health, Internet & Telecom and 60 other categories.
SpotX is leading in most countries, including United States, Sweden, Germany, Netherlands and 38 other countries.
Vocus is leading in Canada, India, China, Israel and 9 other countries.