Market Share by Top Websites

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

2 In terms of market share, Sailthru Horizon is clearly lagging behind, losing to RadiumOne in all segments.

Websites Categories

1 RadiumOne has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Computer & Electronics, Music & Audio and 167 other categories.

2 Sailthru Horizon is leading in Coupons, Magazines & E-Zines, Newspapers, Car Rentals and 17 other categories.


1 RadiumOne is leading in most countries, including United States, France, India, United Kingdom and 118 other countries.

2 Sailthru Horizon is leading in New Zealand, Switzerland, Israel, Bulgaria and 6 other countries.