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, Arts & Entertainment and 44 other categories.
Usablenet is leading in Clothing, Sports, Autos & Vehicles, Home & Garden and 17 other categories.
Bluemetrix is leading in most countries, including Japan, United Kingdom, Ireland, China and 38 other countries.
Usablenet is leading in United States, Spain, Canada, Chile and 4 other countries.