Market Share by Top Websites

1 GroupM Server is leading in Top 10K Sites, Top 100K Sites and The Entire Web.

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

Websites Categories

1 Advert Stream has better usage coverage in more websites categories. Including Arts & Entertainment, Games, Internet & Telecom, People & Society and 85 other categories.

2 GroupM Server is leading in Autos & Vehicles, Web Hosting, Health, Marketing & Advertising and 24 other categories.


1 Advert Stream is leading in most countries, including France, Algeria, Canada, United States and 28 other countries.

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