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, Sports, Music & Audio and 110 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, Germany, India and 74 other countries.
Cobalt Group is leading in United States, Canada, Australia, Mexico and 5 other countries.