AdServerPub is leading in Top 100K Sites and Top 1M Sites.
AdServerPub has better usage coverage in more websites categories. Including Arts & Entertainment, Shopping, News & Media, People & Society and 55 other categories.
Harren Media is leading in Software, Email, Nursery & Playroom, Home & Garden and 2 other categories.
AdServerPub is leading in most countries, including France, Germany, United States, Canada and 35 other countries.
Harren Media is leading in Brazil, Argentina, Peru, Spain and 12 other countries.