DoubleClick AdExchange is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Underdog Media has better usage coverage in more websites categories. Including Computer & Electronics, News & Media, Software, Arts & Entertainment and 60 other categories.
DoubleClick AdExchange is leading in Travel, Tourism, Accommodation & Hotels, Health and 34 other categories.
Underdog Media is leading in most countries, including United States, United Kingdom, Russia, Canada and 36 other countries.
DoubleClick AdExchange is leading in Germany, China, Turkey, Netherlands and 10 other countries.