Marktest is leading in Top 10K Sites and Top 100K Sites.
Navegg has better usage coverage in more websites categories. Including People & Society, Internet & Telecom, Arts & Entertainment, Business & Industry and 22 other categories.
Marktest is leading in Music & Audio and Newspapers.
Navegg is leading in most countries, including Brazil, United States, Spain, South Africa and 5 other countries.
Marktest is leading in Portugal.