GSI Media is leading in Top 10K Sites and Top 100K Sites.
GSI Media has better usage coverage in more websites categories. Including Shopping, Clothing, Sports, Children and 3 other categories.
Kelkoo hasn't got a lead over GSI Media in any websites category.
Kelkoo is leading in most countries, including Portugal, Sweden, Switzerland and Brazil.
GSI Media is leading in United States, Thailand and China.