Rich is leading in Top 10K Sites, 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, Music & Audio and 9 other categories.
Rich is leading in most countries, including Sweden, Norway, Turkey, Australia and 8 other countries.
Zeta Search is leading in Canada, Philippines, Russia, India and one other country.