Market Share by Top Websites

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

2 In terms of market share, Harren Media is clearly lagging behind, losing to AdvertServe in all segments.

Websites Categories

1 AdvertServe has better usage coverage in more websites categories. Including Business & Industry, People & Society, News & Media, Shopping and 111 other categories.

2 Harren Media is leading in Arts & Entertainment, TV & Video, Movies, Computer & Electronics and 15 other categories.


1 AdvertServe is leading in most countries, including United States, Russia, Turkey, United Kingdom and 51 other countries.

2 Harren Media is leading in Colombia, Argentina, Peru, Ecuador and 4 other countries.