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, People & Society, Internet & Telecom and 55 other categories.

2 GroupM Server is leading in Autos & Vehicles, Makes & Models, Law & Government, Telecommunications and 14 other categories.


1 AdServerPub is leading in most countries, including France, Switzerland, Morocco, Belgium and 34 other countries.

2 GroupM Server is leading in Poland, Germany, Denmark, Italy and 25 other countries.