Rich is leading in Top 100K Sites and Top 1M Sites.
Zeta Search has better usage coverage in more websites categories. Including Business & Industry, Finance, Internet & Telecom, Health and 17 other categories.
Rich is leading in Arts & Entertainment, People & Society, TV & Video, Shopping and 12 other categories.
Rich is leading in most countries, including Sweden, Norway, Russia, Germany and 5 other countries.
Zeta Search is leading in United States, Bangladesh, Canada, Slovenia and 3 other countries.