In terms of market share, Vertster is clearly lagging behind, losing to Zeta Search in all segments.
Vertster has better usage coverage in more websites categories. Including People & Society, Internet & Telecom, Womens Interests, Relationships & Dating and one other category.
Zeta Search is leading in Finance, Banking, Investing, Health and one other category.
Vertster is leading in most countries, including Brazil, South Africa, Ghana, China and one other country.
Zeta Search is leading in United States, India, Pakistan and Saudi Arabia.