eProof is leading in Top 10K Sites and Top 100K Sites.
Vertster has better usage coverage in more websites categories. Including Computer & Electronics, People & Society, Computer Hardware, Internet & Telecom and 11 other categories.
eProof is leading in News & Media, Accounting, Finance and Arts & Entertainment.
Vertster is leading in most countries, including Russia.
eProof hasn't got a lead over Vertster in any country.