GSI Media is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
GSI Media has better usage coverage in more websites categories. Including Shopping, Clothing, Sports, Children and 5 other categories.
Kelkoo hasn't got a lead over GSI Media in any websites category.
Kelkoo is leading in most countries, including Denmark, Netherlands, Norway, Poland and one other country.
GSI Media is leading in United States and Mexico.