AdAction is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
AdAction has better usage coverage in more websites categories. Including Business & Industry, Shopping, Arts & Entertainment, Science and 101 other categories.
Cobalt Group is leading in Autos & Vehicles, Car Buying, Automotive Industry, Home & Garden and 10 other categories.
AdAction is leading in most countries, including Norway, Sweden, Netherlands, Denmark and 43 other countries.
Cobalt Group is leading in United States, Canada, Australia, Venezuela and 19 other countries.