Marktest is leading in Top 10K Sites and Top 100K Sites.
Scout Analytics has better usage coverage in more websites categories. Including Business & Industry, News & Media, Health, Law & Government and 21 other categories.
Marktest is leading in People & Society, Music & Audio, TV & Video, Newspapers and one other category.
Scout Analytics is leading in most countries, including United States, United Kingdom, Australia, China and 7 other countries.
Marktest is leading in Portugal and Brazil.