Vizzit is leading in Top 100K Sites and Top 1M Sites.
Yahoo Search Marketing Analytics has better usage coverage in more websites categories. Including Business & Industry, Shopping, Arts & Entertainment, Internet & Telecom and 92 other categories.
Vizzit is leading in Science, Social Sciences, Government, Law & Government and 12 other categories.
Yahoo Search Marketing Analytics is leading in most countries, including Japan, United States, South Korea, Taiwan and 40 other countries.
Vizzit is leading in Sweden, Peru, Niue, Tanzania and one other country.