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, Adbuff is clearly lagging behind, losing to GroupM Server in all segments.

Websites Categories

1 GroupM Server has better usage coverage in more websites categories. Including Computers Electronics & Technology, Games, Vehicles, E-commerce & Shopping and 2 other categories.

2 Adbuff is leading in Sports, Arts & Entertainment and Jobs & Career.


1 GroupM Server is leading in most countries, including Poland, United States, Germany, France and 18 other countries.

2 Adbuff is leading in Iceland, Luxembourg, Portugal and United Kingdom.