Blueshift is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Observer has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, Computer & Electronics, Internet & Telecom and 25 other categories.
Blueshift is leading in Shopping, Furniture, Consumer Electronics, Government and 5 other categories.
Observer is leading in most countries, including Russia, Australia, Japan, Germany and 8 other countries.
Blueshift is leading in India, United Kingdom, Viet Nam and Italy.