Integral Ad Science is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Integral Ad Science has better usage coverage in more websites categories. Including Arts & Entertainment, News & Media, Business & Industry, Computer & Electronics and 85 other categories.
Shopzilla is leading in Shopping, People & Society, Consumer Electronics, Clothing and 59 other categories.
Integral Ad Science is leading in most countries, including United States, Taiwan, Czech Republic, France and 70 other countries.
Shopzilla is leading in Nigeria, Morocco, Moldova, Bolivia and 5 other countries.