Bluemetrix is leading in Top 100K Sites and Top 1M Sites.
Bluemetrix has better usage coverage in more websites categories. Including Business & Industry, Real Estate, Shopping, Travel and 44 other categories.
Usablenet is leading in Clothing, Sports, Health, Recreation & Hobbies and 17 other categories.
Bluemetrix is leading in most countries, including Japan, United Kingdom, Ireland, Russia and 36 other countries.
Usablenet is leading in United States, Italy, Spain, Peru and one other country.