Marktest is leading in Top 10K Sites.
Zeta Search has better usage coverage in more websites categories. Including Business & Industry, Internet & Telecom, Finance, Health and 17 other categories.
Marktest is leading in People & Society, Arts & Entertainment, Music & Audio, News & Media and one other category.
Zeta Search is leading in most countries, including United States, Canada, Afghanistan, Oman and one other country.
Marktest is leading in Brazil.