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, People & Society, Business & Industry, Shopping and 77 other categories.
DoubleClick AdExchange is leading in News & Media, Travel, Tourism, Sports and 36 other categories.
Media6Degrees is leading in most countries, including United States, United Kingdom, Canada, India and 34 other countries.
DoubleClick AdExchange is leading in Germany, China, Turkey, Netherlands and 17 other countries.