Monsido is leading in 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, Transportation & Logistics, Tourism and 17 other categories.
Monsido is leading in most countries, including Denmark, United Kingdom, Germany, Netherlands and 6 other countries.
Observer is leading in United States, Russia, China, Brazil and 4 other countries.