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comScore ScorecardResearch is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.
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In terms of market share, Rambler is clearly lagging behind, losing to comScore ScorecardResearch in all segments.
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comScore ScorecardResearch has better usage coverage in more websites categories. Including Arts & Entertainment, Games, Adult, Lifestyle and 15 other categories.
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Rambler is leading in Heavy Industry & Engineering, Vehicles, Home & Garden, E-commerce & Shopping and one other category.
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comScore ScorecardResearch is leading in most countries, including United States, France, Canada, Taiwan and 149 other countries.
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Rambler is leading in Russia, Ukraine, Belarus, Kazakhstan and 8 other countries.