Bluemetrix is leading in Top 100K Sites and Top 1M Sites.
Bluemetrix has better usage coverage in more websites categories. Including Business & Industry, Shopping, Travel, Real Estate and 32 other categories.
Vizu is leading in People & Society, TV & Video, Internet & Telecom, Law & Government and 14 other categories.
Bluemetrix is leading in most countries, including Japan, United Kingdom, Russia, Ireland and 35 other countries.
Vizu is leading in United States, Indonesia, Germany, Australia and 4 other countries.