AdTotal is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
AdTotal has better usage coverage in more websites categories. Including Sports, Arts & Entertainment, Soccer, Internet & Telecom and 20 other categories.
WebTrends Ads is leading in Business & Industry, Computer & Electronics, People & Society, Shopping and 16 other categories.
WebTrends Ads is leading in most countries, including United States, Indonesia, Canada, United Kingdom and 16 other countries.
AdTotal is leading in Poland, Ukraine, Turkey, Spain and one other country.