Market Share by Top Websites

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

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

Websites Categories

1 Vocus has better usage coverage in more websites categories. Including Business & Industry, Health, News & Media, Internet & Telecom and 70 other categories.

2 GroupM Server is leading in Arts & Entertainment, People & Society, Autos & Vehicles, Music & Audio and 30 other categories.


1 GroupM Server is leading in most countries, including Poland, Germany, Denmark, Spain and 24 other countries.

2 Vocus is leading in United States, United Kingdom, Canada, India and 23 other countries.