Market Share by Top Websites

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

2 In terms of market share, Ad Butler 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, Autos & Vehicles, Car Buying, Career & Education and 67 other categories.

2 Ad Butler is leading in News & Media, Arts & Entertainment, Sports, People & Society and 64 other categories.


1 Ad Butler is leading in most countries, including United Kingdom, Canada, India, China and 76 other countries.

2 Centro is leading in United States, France, Croatia, Japan and 7 other countries.