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 46 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 37 other countries.
w3roi is leading in China.