Market Share by Top Websites

1 GroupM Server is leading in The Entire Web.

2 AdvertServe is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.

Websites Categories

1 AdvertServe has better usage coverage in more websites categories. Including Business & Industry, People & Society, News & Media, Shopping and 110 other categories.

2 GroupM Server is leading in Movies, Games, TV & Video, Video Games and 16 other categories.


1 AdvertServe is leading in most countries, including United States, Russia, Turkey, United Kingdom and 48 other countries.

2 GroupM Server is leading in Poland, Germany, Denmark, Austria and 12 other countries.