DoubleClick AdExchange is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Media6Degrees has better usage coverage in more websites categories. Including Arts & Entertainment, Business & Industry, People & Society, Shopping and 81 other categories.
DoubleClick AdExchange is leading in News & Media, Travel, Tourism, Sports and 45 other categories.
Media6Degrees is leading in most countries, including United States, Canada, Russia, France and 26 other countries.
DoubleClick AdExchange is leading in Germany, China, Netherlands, Turkey and 23 other countries.