Sitespect is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Sitespect has better usage coverage in more websites categories. Including Shopping, Consumer Electronics, Clothing, Sports and 46 other categories.
Usablenet is leading in Internet & Telecom, Mobile Developers, Transportation & Logistics, Banking and 7 other categories.
Sitespect is leading in most countries, including United States, Netherlands, Belgium, Canada and 11 other countries.
Usablenet is leading in United Kingdom, Italy, Spain, Mexico and 3 other countries.