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 21 other categories.
Observer is leading in Arts & Entertainment, Computer & Electronics, Internet & Telecom, People & Society and 17 other categories.
Observer is leading in most countries, including Russia, Germany, Montenegro, Switzerland and 12 other countries.
Monsido is leading in Denmark, Netherlands, United Kingdom, United States and 10 other countries.