Monsido is leading in Top 100K Sites and Top 1M Sites.
Monsido has better usage coverage in more websites categories. Including Business & Industry, Travel, Transportation & Logistics, Tourism and 18 other categories.
Observer is leading in Arts & Entertainment, Computer & Electronics, Internet & Telecom, People & Society and 18 other categories.
Observer is leading in most countries, including Russia, Germany, United States, Montenegro and 15 other countries.
Monsido is leading in Denmark, Great Britain, Netherlands, Norway and 7 other countries.