Optimost is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Optimost has better usage coverage in more websites categories. Including Finance, People & Society, Business & Industry, Insurance and 63 other categories.
Zeta Search is leading in Investing, Alternative & Natural Medicine, Business Services, Motorsports and one other category.
Optimost is leading in most countries, including United States, United Kingdom, Canada, India and 35 other countries.
Zeta Search is leading in Philippines.