Vizzit is leading in Top 100K Sites and Top 1M Sites.
Vizzit has better usage coverage in more websites categories. Including Science, Social Sciences, Business & Industry, Government and 33 other categories.
w3roi is leading in Internet & Telecom, Health, Computer & Electronics, Online Marketing and 24 other categories.
w3roi is leading in most countries, including United States, Netherlands, India, China and 6 other countries.
Vizzit is leading in Sweden, Norway, Canada, Poland and 2 other countries.