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, Microsoft adCenter Conversion is clearly lagging behind, losing to GroupM Server in all segments.

Websites Categories

1 Microsoft adCenter Conversion has better usage coverage in more websites categories. Including Business & Industry, Shopping, Health, Computer & Electronics and 83 other categories.

2 GroupM Server is leading in Arts & Entertainment, People & Society, Autos & Vehicles, Music & Audio and 28 other categories.


1 GroupM Server is leading in most countries, including Germany, Poland, Denmark, Spain and 37 other countries.

2 Microsoft adCenter Conversion is leading in United States, United Kingdom, Canada, South Africa and 13 other countries.