Market Share by Top Websites

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

2 In terms of market share, Amazon A9 is clearly lagging behind, losing to AppNexus in all segments.

Websites Categories

1 AppNexus has better usage coverage in more websites categories. Including Arts & Entertainment, Computers Electronics & Technology, Games, News & Media and 18 other categories.

2 Amazon A9 is leading in Science & Education and Community & Society.


1 AppNexus is leading in most countries, including United States, Japan, France, Russia and 158 other countries.

2 Amazon A9 is leading in Guyana and Guam.