Monsido is leading in Top 100K Sites and Top 1M Sites.
Observer has better usage coverage in more websites categories. Including Arts & Entertainment, Computer & Electronics, Internet & Telecom, People & Society and 21 other categories.
Monsido is leading in Business & Industry, Travel, Tourism, Shopping and 17 other categories.
Monsido is leading in most countries, including Denmark, United Kingdom, Sweden, Poland and 7 other countries.
Observer is leading in Russia, Canada, China, Italy and 4 other countries.