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 50 other categories.
w3roi is leading in Internet & Telecom, Health, Career & Education, Online Marketing and 16 other categories.
Bluemetrix is leading in most countries, including Japan, United Kingdom, United States, Ireland and 42 other countries.
w3roi is leading in China, Colombia and Iran.