Experian Marketing Services is leading in Top 100K Sites and Top 1M Sites.
Experian Marketing Services has better usage coverage in more websites categories. Including Autos & Vehicles, Arts & Entertainment, Business & Industry, Car Buying and 22 other categories.
Nextag ROI Optimizer is leading in Shopping, Home & Garden, Marketing & Advertising, Health and 14 other categories.
Experian Marketing Services is leading in most countries, including United States, United Kingdom, Brazil, Canada and 14 other countries.
Nextag ROI Optimizer is leading in France, Germany, Austria, Netherlands and one other country.