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Optimizely is leading in Top 10K Sites and The Entire Web.
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Google Optimize is leading in Top 100K Sites and Top 1M Sites.
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Optimizely has better usage coverage in more websites categories. Including Computers Electronics & Technology, Finance, Business & Consumer Services, Travel & Tourism and 15 other categories.
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Google Optimize is leading in Lifestyle, E-commerce & Shopping, Home & Garden, Heavy Industry & Engineering and one other category.
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Optimizely is leading in most countries, including United States, United Kingdom, Russia, Canada and 141 other countries.
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Google Optimize is leading in Slovakia, Belarus, Iran, Algeria and 4 other countries.