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Quigo AdSonar is leading in The Entire Web.
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Integral Ad Science is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
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Integral Ad Science has better usage coverage in more websites categories. Including News & Media, Business & Industry, Computer & Electronics, Internet & Telecom and 82 other categories.
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Quigo AdSonar is leading in People & Society, Religion & Spirituality, Health, Finance and 46 other categories.
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Integral Ad Science is leading in most countries, including United States, Taiwan, Great Britain, Italy and 64 other countries.
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Quigo AdSonar is leading in Canada, India, Australia, Israel and 29 other countries.