.io is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
.io has better usage coverage in more websites categories. Including News & Media, Arts & Entertainment, People & Society, Shopping and 77 other categories.
Unica is leading in Business & Industry, Autos & Vehicles, Car Buying, Health and 74 other categories.
.io is leading in most countries, including Russia, Ukraine, Nigeria, Kazakhstan and 72 other countries.
Unica is leading in United States, Germany, United Kingdom, Canada and 39 other countries.