GSI Media is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Open AdExchange has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, People & Society, Marketing & Advertising and 21 other categories.
GSI Media is leading in Shopping, Clothing, Children, Sports and one other category.
Open AdExchange is leading in most countries, including Denmark, Australia, Sweden and United Kingdom.
GSI Media is leading in United States.