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 34 other categories.
Zeta Search is leading in Internet & Telecom, Health, Finance, Online Marketing and 15 other categories.
FredHopper is leading in most countries, including France, United Kingdom, Germany, Netherlands and 36 other countries.
Zeta Search is leading in United States and India.