Market Share by Top Websites

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

2 Despite its recent growth, Gemius is still behind Quantcast in all market share segments.

Websites Categories

1 Quantcast has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Business & Industry, Music & Audio and 241 other categories.

2 Gemius is leading in Education & Resources.

Geography

1 Quantcast is leading in most countries, including United States, Russia, United Kingdom, Canada and 207 other countries.

2 Gemius is leading in Poland, Hungary, Czech Republic, Turkey and 6 other countries.