Ad Butler is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Ad Butler has better usage coverage in more websites categories. Including News & Media, Arts & Entertainment, Music & Audio, People & Society and 116 other categories.
Cobalt Group is leading in Autos & Vehicles, Car Buying, Business & Industry, Automotive Industry and 18 other categories.
Ad Butler is leading in most countries, including Belarus, United Kingdom, Canada, India and 72 other countries.
Cobalt Group is leading in United States, Australia, Mexico, New Zealand and 2 other countries.