AdTotal is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
AdTotal has better usage coverage in more websites categories. Including Business & Industry, Internet & Telecom, Arts & Entertainment, Sports and 26 other categories.
Kelkoo hasn't got a lead over AdTotal in any websites category.
AdTotal is leading in most countries, including Poland, United States, Germany, Argentina and 5 other countries.
Kelkoo is leading in United Kingdom, Norway and France.