Mercent is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Mercent has better usage coverage in more websites categories. Including Shopping, Clothing, Business & Industry, Home & Garden and 45 other categories.
Six Apart Advertising is leading in Arts & Entertainment, People & Society, News & Media, Humor and 37 other categories.
Mercent is leading in most countries, including United States, Canada, United Kingdom, Spain and 78 other countries.
Six Apart Advertising is leading in Germany, Venezuela and Singapore.