In terms of market share, Observer is clearly lagging behind, losing to Zeta Search in all segments.
Observer has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, Computer & Electronics, Internet & Telecom and 26 other categories.
Zeta Search is leading in Health, Finance, Online Marketing, Investing and 10 other categories.
Observer is leading in most countries, including Russia, China, Switzerland, Brazil and 7 other countries.
Zeta Search is leading in India.