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 28 other categories.
w3roi is leading in Internet & Telecom, Computer & Electronics, Health, Online Marketing and 23 other categories.
w3roi is leading in most countries, including United States, China, Canada, Colombia and 5 other countries.
Vizzit is leading in Sweden, Germany, Russia, Romania and one other country.