Adobe Visitor API is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
etracker has better usage coverage in more websites categories. Including Business & Industry, Shopping, Arts & Entertainment, Marketing & Advertising and 152 other categories.
Adobe Visitor API is leading in Autos & Vehicles, Car Buying, Travel, Accommodation & Hotels and 62 other categories.
Adobe Visitor API is leading in most countries, including United States, Czech Republic, United Kingdom, Canada and 118 other countries.
etracker is leading in Germany, Spain, France, Austria and 34 other countries.