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, Death, Travel and 37 other categories.
Sitespect is leading in Shopping, Consumer Electronics, Clothing, Sports and 31 other categories.
Sitespect is leading in most countries, including United States, Netherlands, Belgium, Canada and 11 other countries.
Usablenet is leading in United Kingdom, Japan, Spain, Ireland and 7 other countries.