Optimizely Usage Statistics

Websites using Optimizely

Download Lead List

Get a list of 822,516 websites using Optimizely which includes location information, hosting data, contact details, 302,660 currently live websites and 519,856 sites that used this technology previously.

Top 10k
Top 100k
Top 1m

Quantcast Top 10k
964 of 10,000


Quantcast Top 100k
3,632 of 100,000


BuiltWith Top Million
12,533 of 947,709


Entire Internet
266,756 of 348,413,036


Log in or Sign up for Free to see Optimizely history back another year to February 2014. View plans for historical access back to October 2010.

Optimizely empowers companies to deliver more relevant and effective digital experiences on websites and mobile through A/B testing and personalization.


Categories: Analytics and Tracking · A/B Testing · Conversion Optimization · Personalization · Site Optimization

Technology Won
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This table shows where Optimizely are gaining/losing customers from within the technologies in the same sub-categories of A/B Testing, Conversion Optimization, Personalization and Site Optimization. View the full report for more information regarding countries, states and where Optimizely's customers come from.


Top 10,000 Sites
Top 100,000 Sites
Top 1 Million Sites

This chart shows the amount of websites within the top 10k, 100k, and 1 million sites groups that are categorized as being in the specific vertical.

Get access to data on 822,516 websites that have used Optimizely. We know of 302,660 live websites using Optimizely and an additional 519,856 sites that used Optimizely historically

View Website List

Get a list of websites using Optimizely

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A/B Testing

Visual Website Optimizer

54,991 websites


35,046 websites

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