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, Law & Government and 19 other categories.
w3roi is leading in Internet & Telecom, Computer & Electronics, Health, Software and 18 other categories.
w3roi is leading in most countries, including United States, China, Taiwan, United Kingdom and 8 other countries.
Vizzit is leading in Sweden, Viet Nam, Norway, Germany and one other country.