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 News & Media, Computer & Electronics, Software, Technology News and 72 other categories.
PayClick is leading in People & Society, Business & Industry, Arts & Entertainment, Internet & Telecom and 57 other categories.
Integral Ad Science is leading in most countries, including United States, United Kingdom, France, Canada and 69 other countries.
PayClick is leading in Italy, Hungary, Switzerland, Albania and one other country.