InternetBrands is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
InternetBrands has better usage coverage in more websites categories. Including Health, Business & Industry, Shopping, Autos & Vehicles and 70 other categories.
WebTrends Ads is leading in Computer & Electronics, People & Society, Software, Religion & Spirituality and 9 other categories.
InternetBrands is leading in most countries, including United States, United Kingdom, Russia, Canada and 15 other countries.
WebTrends Ads is leading in Costa Rica, Argentina, Australia, Indonesia and 8 other countries.