AdServerPub is leading in Top 100K Sites and Top 1M Sites.
AdServerPub has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Internet & Telecom, Business & Industry and 43 other categories.
Shopzilla is leading in Shopping, Computer & Electronics, Consumer Electronics, Food & Drink and 35 other categories.
AdServerPub is leading in most countries, including France, Germany, Morocco, Algeria and 25 other countries.
Shopzilla is leading in United States, Russia, China, Ukraine and 15 other countries.