Market Share by Top Websites

1 Quantcast is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Openstat is clearly lagging behind, losing to Quantcast in all segments.

Websites Categories

1 Quantcast has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Business & Industry, Religion & Spirituality and 232 other categories.

2 Openstat is leading in Social Sciences, Automotive Industry, Classifieds, Book Retailers and 2 other categories.


1 Quantcast is leading in most countries, including United States, United Kingdom, Canada, Germany and 211 other countries.

2 Openstat is leading in Russia, Ukraine, Kazakhstan, Belarus and 6 other countries.