InternetBrands is leading in Top 100K Sites and Top 1M Sites.
InternetBrands has better usage coverage in more websites categories. Including Law & Government, Law, Business & Industry, Health and 54 other categories.
Six Apart Advertising is leading in Arts & Entertainment, People & Society, News & Media, Computer & Electronics and 42 other categories.
InternetBrands is leading in most countries, including United States, Russia, India, Spain and 9 other countries.
Six Apart Advertising is leading in Germany, France, Poland, Canada and 6 other countries.