In terms of market share, Observer is clearly lagging behind, losing to w3roi in all segments.
Observer has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, Computer & Electronics, People & Society and 19 other categories.
w3roi is leading in Internet & Telecom, Health, Career & Education, Online Marketing and 19 other categories.
Observer is leading in most countries, including Russia, Germany, Montenegro, Netherlands and 18 other countries.
w3roi is leading in United States, India, China, Portugal and 6 other countries.