Eulerian is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Eulerian has better usage coverage in more websites categories. Including Business & Industry, Finance, Travel, Shopping and 55 other categories.
Zeta Search is leading in Internet & Telecom, Online Marketing, Equestrian, Business Services and 2 other categories.
Eulerian is leading in most countries, including France, United Kingdom, Germany, Spain and 12 other countries.
Zeta Search is leading in United States, Colombia and Malta.