DoubleClick AdExchange is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Mercent has better usage coverage in more websites categories. Including Shopping, Arts & Entertainment, Clothing, Business & Industry and 60 other categories.
DoubleClick AdExchange is leading in News & Media, Travel, Tourism, Music & Audio and 42 other categories.
Mercent is leading in most countries, including United States, Canada, India, Ukraine and 36 other countries.
DoubleClick AdExchange is leading in Germany, China, Turkey, Spain and 29 other countries.