ClearSaleing is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
ClearSaleing has better usage coverage in more websites categories. Including Travel, Accommodation & Hotels, Shopping, Business & Industry and 41 other categories.
Observer is leading in Arts & Entertainment, Computer & Electronics, Internet & Telecom, People & Society and 17 other categories.
ClearSaleing is leading in most countries, including United States, Canada, United Kingdom, France and 17 other countries.
Observer is leading in Russia, Netherlands, Czech Republic and Serbia.