Market Share by Top Websites

1 Nielsen Display Ads is leading in Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Mediaplex is clearly lagging behind, losing to Nielsen Display Ads in all segments.

Websites Categories

1 Mediaplex has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Shopping, News & Media and 129 other categories.

2 Nielsen Display Ads is leading in Business & Industry, Internet & Telecom, Autos & Vehicles, Music & Audio and 83 other categories.

Geography

1 Nielsen Display Ads is leading in most countries, including France, United States, United Kingdom, Germany and 145 other countries.

2 Mediaplex is leading in Australia, Indonesia, Japan, China and 20 other countries.