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 61 other categories.
Vocus is leading in Business & Industry, People & Society, Health, Internet & Telecom and 61 other categories.
SpotX is leading in most countries, including United States, Germany, Netherlands, United Kingdom and 39 other countries.
Vocus is leading in Canada, India, Poland, China and 13 other countries.