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, Gemius 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, Games, Computers Electronics & Technology, Science & Education and 17 other categories.

2 Gemius is leading in News & Media, E-commerce & Shopping and Reference Materials.

Geography

1 Quantcast is leading in most countries, including United States, Russia, United Kingdom, Canada and 138 other countries.

2 Gemius is leading in Poland, Czech Republic, Hungary, Turkey and 10 other countries.