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 62 other categories.
Optimatic is leading in Games, News & Media, Internet & Telecom, Online and 18 other categories.
InternetBrands is leading in most countries, including United States, Mexico, Russia, United Kingdom and 19 other countries.
Optimatic is leading in Algeria, Israel, Venezuela, Turkey and 14 other countries.