Adservice Media is leading in Top 100K Sites and Top 1M Sites.
Shopzilla has better usage coverage in more websites categories. Including Shopping, People & Society, Arts & Entertainment, Clothing and 80 other categories.
Adservice Media is leading in Business & Industry, Internet & Telecom, Finance, Financial Management and 67 other categories.
Shopzilla is leading in most countries, including United States, India, Brazil, Russia and 20 other countries.
Adservice Media is leading in Denmark, Norway, Sweden, Finland and 15 other countries.