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Ad Spirit is leading in Top 100K Sites, Top 1M Sites and The Entire Web.
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GroupM Server is leading in Top 10K Sites.
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Ad Spirit has better usage coverage in more websites categories. Including Heavy Industry & Engineering, Sports, Science & Education, Food & Drink and 18 other categories.
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GroupM Server is leading in Computers Electronics & Technology and Games.
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Ad Spirit is leading in most countries, including Germany, Austria, United Kingdom, Italy and 35 other countries.
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GroupM Server is leading in Poland, United States, Denmark, Canada and 8 other countries.