MerchantAdvantage is leading in Top 100K Sites and Top 1M Sites.
MerchantAdvantage has better usage coverage in more websites categories. Including Shopping, Business & Industry, Home & Garden, Health and 29 other categories.
MetriWeb is leading in People & Society, Arts & Entertainment, News & Media, Career & Education and 16 other categories.
MerchantAdvantage is leading in most countries, including United States, Canada, Spain, United Kingdom and 13 other countries.
MetriWeb is leading in Belgium, Luxembourg, Russia, France and 12 other countries.