Market Share by Top Websites

1 GroupM Server is leading in The Entire Web.

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

Websites Categories

1 Undertone Networks has better usage coverage in more websites categories. Including People & Society, News & Media, Business & Industry, Sports and 59 other categories.

2 GroupM Server is leading in Arts & Entertainment, Internet & Telecom, Shopping, Autos & Vehicles and 36 other categories.


1 GroupM Server is leading in most countries, including Poland, Germany, Denmark, Italy and 23 other countries.

2 Undertone Networks is leading in United States, United Kingdom, Canada, Brazil and 21 other countries.