AdBuyer.com is leading in Top 1M Sites.
AdBuyer.com has better usage coverage in more websites categories. Including Shopping, Business & Industry, Career & Education, Arts & Entertainment and 65 other categories.
Kelkoo hasn't got a lead over AdBuyer.com in any websites category.
AdBuyer.com is leading in most countries, including United States, Israel, France, Canada and 15 other countries.
Kelkoo is leading in Netherlands, Norway, Portugal, Sweden and 3 other countries.