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, Computer & Electronics, Arts & Entertainment, Internet & Telecom and 27 other categories.
Zeta Search is leading in Finance, Health, Online Marketing, Investing and 10 other categories.
Observer is leading in most countries, including United States, Russia, United Kingdom, Brazil and 8 other countries.
Zeta Search is leading in Canada, Bangladesh, India, Israel and 3 other countries.