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, Business & Industry, Car Buying and 85 other categories.
Underdog Media is leading in Computer & Electronics, News & Media, Software, Technology News and 36 other categories.
SpotX is leading in most countries, including Germany, Sweden, Mexico, France and 51 other countries.
Underdog Media is leading in United States, United Kingdom, India, Canada and 27 other countries.