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 25 other categories.
Zeta Search is leading in Finance, Internet & Telecom, Health, Online Marketing and 17 other categories.
FredHopper is leading in most countries, including France, United Kingdom, Germany, Netherlands and 25 other countries.
Zeta Search is leading in United States and Philippines.