Marktest is leading in Top 10K Sites.
Rich has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, TV & Video, Internet & Telecom and 12 other categories.
Marktest is leading in Music & Audio, News & Media, Newspapers and Religion & Spirituality.
Rich is leading in most countries, including Sweden, Norway, Netherlands, Czech Republic and 17 other countries.
Marktest is leading in Portugal, Brazil, Israel and Romania.