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VigLink is leading in Top 1M Sites and The Entire Web.
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Integral Ad Science is leading in Top 10K Sites and Top 100K Sites.
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VigLink has better usage coverage in more websites categories. Including Community & Society, Computers Electronics & Technology, Science & Education, Adult and 16 other categories.
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Integral Ad Science is leading in Games, Arts & Entertainment, News & Media and Food & Drink.
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VigLink is leading in most countries, including France, China, Indonesia, Spain and 125 other countries.
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Integral Ad Science is leading in United States, United Kingdom, Canada, Philippines and 22 other countries.