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 58 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, Mexico, Russia, Canada and 19 other countries.
Six Apart Advertising is leading in United Kingdom, France, Italy, India and 10 other countries.