DoubleClick AdExchange is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
DoubleClick AdExchange has better usage coverage in more websites categories. Including News & Media, Travel, Arts & Entertainment, Tourism and 44 other categories.
Mercent is leading in Shopping, Clothing, Business & Industry, Games and 35 other categories.
Mercent is leading in most countries, including United Kingdom, Canada, Russia, Finland and 53 other countries.
DoubleClick AdExchange is leading in United States, Germany, China, Turkey and 22 other countries.