DotAndMedia is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
DotAndMedia has better usage coverage in more websites categories. Including Arts & Entertainment, News & Media, People & Society, Shopping and 40 other categories.
Open AdExchange is leading in Business & Industry, Travel, Real Estate, Law & Government and 13 other categories.
DotAndMedia is leading in most countries, including Italy, France, Romania, Russia and 9 other countries.
Open AdExchange is leading in Denmark, Norway, Sweden, Canada and 4 other countries.