InternetBrands is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
InternetBrands has better usage coverage in more websites categories. Including Law & Government, Law, Business & Industry, Health and 68 other categories.
WebTrends Ads is leading in Computer & Electronics, People & Society, Software, Religion & Spirituality and 8 other categories.
InternetBrands is leading in most countries, including United States, United Kingdom, Canada, Russia and 21 other countries.
WebTrends Ads is leading in Indonesia, Argentina, Germany, Netherlands and one other country.