In terms of market share, AdvertiseSpace is clearly lagging behind, losing to Kelkoo in all segments.
AdvertiseSpace has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, Internet & Telecom, Computer & Electronics and 76 other categories.
Kelkoo hasn't got a lead over AdvertiseSpace in any websites category.
AdvertiseSpace is leading in most countries, including India, United States, Italy, Australia and 43 other countries.
Kelkoo is leading in Austria and Finland.