Sitespect is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Usablenet has better usage coverage in more websites categories. Including Business & Industry, People & Society, Travel, Accommodation & Hotels and 37 other categories.
Sitespect is leading in Shopping, Consumer Electronics, Clothing, Sports and 30 other categories.
Usablenet is leading in most countries, including Japan, Great Britain, Spain, Mexico and 34 other countries.
Sitespect is leading in United States, Netherlands, Belgium, Germany and 6 other countries.