In terms of market share, Advertise.com is clearly lagging behind, losing to Kelkoo in all segments.
Advertise.com has better usage coverage in more websites categories. Including Health, Products & Shopping, Business & Industry, Arts & Entertainment and 41 other categories.
Kelkoo hasn't got a lead over Advertise.com in any websites category.
Advertise.com is leading in most countries, including United States, Japan, Taiwan, Kazakhstan and 8 other countries.
Kelkoo is leading in France and Norway.