eProof is leading in Top 10K Sites and Top 100K Sites.
Zeta Search has better usage coverage in more websites categories. Including Business & Industry, Internet & Telecom, People & Society, Online Marketing and 20 other categories.
eProof is leading in Arts & Entertainment, Adult, Accounting and News & Media.
Zeta Search is leading in most countries, including United States, Canada and India.
eProof hasn't got a lead over Zeta Search in any country.