Coremetrics is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
W3Counter has better usage coverage in more websites categories. Including People & Society, Business & Industry, Religion & Spirituality, Arts & Entertainment and 118 other categories.
Coremetrics is leading in Shopping, Finance, News & Media, Banking and 59 other categories.
W3Counter is leading in most countries, including Brazil, India, Indonesia, Russia and 94 other countries.
Coremetrics is leading in United States, United Kingdom, France, Japan and 28 other countries.