Market Share by Top Websites

1 Rubicon Project 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 Rubicon Project in all segments.

Websites Categories

1 Rubicon Project has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, News & Media, Internet & Telecom and 102 other categories.

2 Adzerk is leading in Business & Industry, Religion & Spirituality, Sports, Computer & Electronics and 87 other categories.


1 Rubicon Project is leading in most countries, including United States, France, Japan, Brazil and 141 other countries.

2 Adzerk is leading in Tunisia, Reunion, Myanmar, Cote d Ivoire and 17 other countries.