Market Share by Top Websites

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

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

Websites Categories

1 Adzerk has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Sports, Internet & Telecom and 101 other categories.

2 AdFox is leading in News & Media, Business & Industry, Real Estate, Autos & Vehicles and 52 other categories.


1 AdFox is leading in most countries, including Russia, Ukraine, United States, Belarus and 92 other countries.

2 Adzerk is leading in France, Poland, Belgium, Switzerland and 34 other countries.