Experian Marketing Services is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Experian Marketing Services has better usage coverage in more websites categories. Including Autos & Vehicles, Arts & Entertainment, Car Buying, People & Society and 20 other categories.
Nextag ROI Optimizer is leading in Shopping, Business & Industry, Home & Garden, Marketing & Advertising and 15 other categories.
Experian Marketing Services is leading in most countries, including United States, Canada, United Kingdom, Japan and 13 other countries.
Nextag ROI Optimizer is leading in France, Germany, India, Austria and one other country.