Celebros is leading in Top 100K Sites and Top 1M Sites.
Celebros has better usage coverage in more websites categories. Including Shopping, Business & Industry, Clothing, Home & Garden and 44 other categories.
Zettata hasn't got a lead over Celebros in any websites category.
Celebros is leading in most countries, including United States, Germany, France, Ireland and 16 other countries.
Zettata is leading in India.