In terms of market share, Vertster is clearly lagging behind, losing to Zeta Search in all segments.
Zeta Search has better usage coverage in more websites categories. Including Business & Industry, Internet & Telecom, People & Society, Online Marketing and 19 other categories.
Vertster is leading in Computer & Electronics, Computer Hardware, Womens Interests, Science and 6 other categories.
Zeta Search is leading in most countries, including United States, Canada and India.
Vertster is leading in Australia and Portugal.