Marktest is leading in Top 10K Sites and Top 100K Sites.
Uptrends has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, Business & Industry, Internet & Telecom and 56 other categories.
Marktest is leading in TV & Video, Soccer and Newspapers.
Uptrends is leading in most countries, including Netherlands, Belgium, Germany, Canada and 25 other countries.
Marktest is leading in Portugal.