Bluemetrix is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Bluemetrix has better usage coverage in more websites categories. Including Business & Industry, Real Estate, Shopping, Travel and 43 other categories.
Usablenet is leading in Clothing, Home & Garden, Health, Recreation & Hobbies and 12 other categories.
Bluemetrix is leading in most countries, including Japan, United Kingdom, Ireland, Taiwan and 40 other countries.
Usablenet is leading in United States, Spain, Peru, Israel and 3 other countries.