Nextag ROI Optimizer is leading in Top 100K Sites and Top 1M Sites.
Webclicktracker has better usage coverage in more websites categories. Including Business & Industry, Industrial Goods & Services, Construction & Maintenance, Chemicals and 16 other categories.
Nextag ROI Optimizer is leading in Shopping, Clothing, Marketing & Advertising, Home & Garden and 13 other categories.
Webclicktracker is leading in most countries, including United States, Bangladesh, Mexico, Italy and 10 other countries.
Nextag ROI Optimizer is leading in Germany, United Kingdom, Canada, Taiwan and 4 other countries.