Qualifio is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Qualifio has better usage coverage in more websites categories. Including Arts & Entertainment, Business & Industry, Music & Audio, News & Media and 37 other categories.
Slashdot Widget is leading in Internet & Telecom, People & Society, Religion & Spirituality, Clothing and 2 other categories.
Qualifio is leading in most countries, including France, Belgium, Netherlands, Spain and 18 other countries.
Slashdot Widget is leading in Tunisia and Australia.