Encore Metrics is leading in Top 100K Sites.
Observer has better usage coverage in more websites categories. Including Business & Industry, Computer & Electronics, Arts & Entertainment, People & Society and 25 other categories.
Encore Metrics is leading in Travel, Accommodation & Hotels, Shopping, Tourism and 9 other categories.
Observer is leading in most countries, including Russia, France, United Kingdom, Ukraine and 7 other countries.
Encore Metrics is leading in United States, Japan, Argentina, Mongolia and 4 other countries.