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 Business & Industry, Arts & Entertainment, News & Media, Sports and 134 other categories.
Cobalt Group is leading in Autos & Vehicles, Car Buying, Automotive Industry, Shopping and 12 other categories.
Ad Butler is leading in most countries, including United Kingdom, Belarus, India, Germany and 70 other countries.
Cobalt Group is leading in United States, Canada, Australia, Philippines and 6 other countries.