Market Share by Top Websites

1 Centro is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Ad Spirit is clearly lagging behind, losing to Centro in all segments.

Websites Categories

1 Centro has better usage coverage in more websites categories. Including Business & Industry, News & Media, Autos & Vehicles, Career & Education and 94 other categories.

2 Ad Spirit is leading in Sports, Arts & Entertainment, Soccer, Internet & Telecom and 53 other categories.


1 Centro is leading in most countries, including United States, Canada, Great Britain, France and 32 other countries.

2 Ad Spirit is leading in Germany, Poland, Austria, Switzerland and 21 other countries.