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 29 other categories.
Nextag ROI Optimizer is leading in Shopping, Marketing & Advertising, Home & Garden, Industrial Goods & Services and 7 other categories.
Experian Marketing Services is leading in most countries, including United States, United Kingdom, Italy, Brazil and 17 other countries.
Nextag ROI Optimizer is leading in France and Viet Nam.