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 113 other categories.
Cobalt Group is leading in Autos & Vehicles, Car Buying, Business & Industry, Automotive Industry and 21 other categories.
Ad Butler is leading in most countries, including Belarus, United Kingdom, India, Germany and 80 other countries.
Cobalt Group is leading in United States, Canada, Australia, Mexico and 6 other countries.