Rich is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Rich has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, News & Media, TV & Video and 14 other categories.
Zeta Search is leading in Internet & Telecom, Online Marketing, Health, Finance and 13 other categories.
Rich is leading in most countries, including Sweden, Norway, France, Germany and 6 other countries.
Zeta Search is leading in United States, United Arab Emirates, Thailand, Armenia and one other country.