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 35 other categories.
Zeta Search is leading in Internet & Telecom, Finance, Online Marketing, Health and 14 other categories.
FredHopper is leading in most countries, including United Kingdom, France, Netherlands, Germany and 40 other countries.
Zeta Search is leading in India, Japan, South Korea, Mexico and 3 other countries.