Market Share by Top Websites

1 GroupM Server is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.

2 In terms of market share, AdServerPub is clearly lagging behind, losing to GroupM Server in all segments.

Websites Categories

1 AdServerPub has better usage coverage in more websites categories. Including Arts & Entertainment, Shopping, News & Media, People & Society and 48 other categories.

2 GroupM Server is leading in Autos & Vehicles, Business & Industry, Makes & Models, Music & Audio and 24 other categories.


1 AdServerPub is leading in most countries, including France, United States, Canada, Belgium and 34 other countries.

2 GroupM Server is leading in Poland, Germany, Italy, Denmark and 18 other countries.