In terms of market share, w3roi is clearly lagging behind, losing to Zeta Search in all segments.
w3roi has better usage coverage in more websites categories. Including Internet & Telecom, Business & Industry, Computer & Electronics, Health and 28 other categories.
Zeta Search is leading in Finance, Investing, Business Services, Motorsports and 11 other categories.
w3roi is leading in most countries, including Brazil, India, Pakistan, Sweden and 9 other countries.
Zeta Search is leading in United States, Canada and Greece.