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, Clothing and 39 other categories.
Observer is leading in Arts & Entertainment, Computer & Electronics, Internet & Telecom, People & Society and 18 other categories.
ClearSaleing is leading in most countries, including United States, United Kingdom, Canada, France and 26 other countries.
Observer is leading in Russia, Brazil, Colombia, Australia and one other country.