FredHopper is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
FredHopper has better usage coverage in more websites categories. Including Business & Industry, Shopping, Clothing, Home & Garden and 25 other categories.
Zeta Search is leading in Finance, Internet & Telecom, Health, People & Society and 18 other categories.
FredHopper is leading in most countries, including France, United Kingdom, Netherlands, Germany and 26 other countries.
Zeta Search is leading in United States, Canada and India.