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, News & Media, Health, Shopping and 68 other categories.

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

Geography

1 Vocus is leading in most countries, including United States, Canada, India, United Kingdom and 21 other countries.

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