Market Share by Top Websites

1 Nielsen NetRatings is leading in Top 10K Sites, Top 100K Sites and The Entire Web.

2 Adobe Visitor API is leading in Top 1M Sites.

Websites Categories

1 Nielsen NetRatings has better usage coverage in more websites categories. Including Business & Industry, Marketing & Advertising, Arts & Entertainment, People & Society and 185 other categories.

2 Adobe Visitor API is leading in Autos & Vehicles, Car Buying, Accommodation & Hotels, Flowers and 39 other categories.

Geography

1 Adobe Visitor API is leading in most countries, including United States, Czech Republic, Germany, Canada and 87 other countries.

2 Nielsen NetRatings is leading in Italy, Australia, Spain, Bulgaria and 81 other countries.