FredHopper is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
FredHopper has better usage coverage in more websites categories. Including Shopping, Business & Industry, Clothing, Home & Garden and 21 other categories.
Zeta Search is leading in Internet & Telecom, Health, Online Marketing, People & Society and 15 other categories.
FredHopper is leading in most countries, including France, United Kingdom, Netherlands, Belgium and 26 other countries.
Zeta Search is leading in United States, Canada and India.