Monsido is leading in Top 100K Sites and Top 1M Sites.
Observer has better usage coverage in more websites categories. Including Computer & Electronics, Arts & Entertainment, People & Society, Internet & Telecom and 20 other categories.
Monsido is leading in Business & Industry, Travel, Tourism, Health and 18 other categories.
Observer is leading in most countries, including United States, Russia, Ukraine, Turkey and 6 other countries.
Monsido is leading in Denmark, United Kingdom, Sweden, Norway and 4 other countries.