Ad Butler is leading in Top 100K Sites and Top 1M Sites.
Ad Butler has better usage coverage in more websites categories. Including Business & Industry, News & Media, Arts & Entertainment, Sports and 106 other categories.
AdServerPub is leading in Games, Video Games, Movies, Classifieds and 18 other categories.
Ad Butler is leading in most countries, including United States, United Kingdom, Canada, Mexico and 72 other countries.
AdServerPub is leading in France, Morocco, Belgium, Switzerland and 19 other countries.