In terms of market share, Open AdExchange is clearly lagging behind, losing to Shopzilla in all segments.
Shopzilla has better usage coverage in more websites categories. Including Shopping, Arts & Entertainment, Business & Industry, People & Society and 53 other categories.
Open AdExchange is leading in Office Products, Sports, Textiles & Nonwovens, Transportation & Logistics and 2 other categories.
Shopzilla is leading in most countries, including United States, Canada, India, Australia and 25 other countries.
Open AdExchange is leading in Denmark, Norway and Sweden.