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Optimizely is leading in Top 10K Sites, Top 100K Sites and The Entire Web.
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Google Optimize is leading in Top 1M Sites.
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Optimizely has better usage coverage in more websites categories. Including Games, Arts & Entertainment, Computers Electronics & Technology, Vehicles and 19 other categories.
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Google Optimize is leading in Heavy Industry & Engineering.
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Optimizely is leading in most countries, including United States, United Kingdom, Canada, Germany and 153 other countries.
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Google Optimize is leading in Slovakia, Iran, Malawi and Turkmenistan.