Encore Metrics is leading in Top 100K Sites.
Zeta Search has better usage coverage in more websites categories. Including Business & Industry, Internet & Telecom, People & Society, Online Marketing and 11 other categories.
Encore Metrics is leading in Travel, Accommodation & Hotels, Shopping, Tourism and 8 other categories.
Encore Metrics is leading in most countries, including United States, Japan, Argentina, Mongolia and 5 other countries.
Zeta Search is leading in Canada and India.