Market Share by Top Websites

1 Quantcast is leading in The Entire Web.

2 comScore ScorecardResearch is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.

Websites Categories

1 Quantcast has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Business & Industry, Music & Audio and 234 other categories.

2 comScore ScorecardResearch is leading in Email, College & University Press, Automotive News, Education & Resources and 3 other categories.

Geography

1 comScore ScorecardResearch is leading in most countries, including United States, Russia, United Kingdom, Brazil and 198 other countries.

2 Quantcast is leading in Bangladesh, Mauritius, Papua New Guinea, Isle of Man and 12 other countries.