AdServerPub is leading in Top 100K Sites and Top 1M Sites.
AdServerPub has better usage coverage in more websites categories. Including Arts & Entertainment, Shopping, Internet & Telecom, People & Society and 66 other categories.
AfterDownload is leading in Software and Computer Security.
AdServerPub is leading in most countries, including France, Germany, Switzerland, Morocco and 42 other countries.
AfterDownload is leading in United States, Czech Republic, Portugal and Brazil.