Market Share by Top Websites

1 GroupM Server is leading in The Entire Web.

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

Websites Categories

1 SpotX has better usage coverage in more websites categories. Including Arts & Entertainment, News & Media, Autos & Vehicles, Car Buying and 57 other categories.

2 GroupM Server is leading in People & Society, Business & Industry, Internet & Telecom, Shopping and 31 other categories.


1 SpotX is leading in most countries, including United States, Netherlands, Spain, United Kingdom and 35 other countries.

2 GroupM Server is leading in Poland, Germany, Denmark, Austria and 17 other countries.