Market Share by Top Websites

1 adk2 is leading in Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Open AdExchange is clearly lagging behind, losing to adk2 in all segments.

Websites Categories

1 adk2 has better usage coverage in more websites categories. Including Arts & Entertainment, Movies, People & Society, Computer & Electronics and 101 other categories.

2 Open AdExchange is leading in Newspapers, Sports, Office Products, Auctions and 2 other categories.


1 adk2 is leading in most countries, including United States, Indonesia, India, United Kingdom and 73 other countries.

2 Open AdExchange is leading in Denmark and Guatemala.