Optimizely Usage Statistics

Websites using Optimizely


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

Quantcast Top 10k
635 of 10,000


Quantcast Top 100k
2,527 of 100,000


Quantcast Top Million
9,037 of 878,372


BuiltWith Top Sites
16,733 of 1,824,705


Premium Sites
302,934 of 10,736,091


Entire Internet
338,296 of 307,985,818


Log in or Sign up for Free to see Optimizely history back another year to April 2013. View plans for historical access back to October 2010.

Optimizely is a way for you to improve your website through A/B testing.


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

Technology Won
comScore 11,778
Google Analytics 7,147

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.

Physical locations of businesses using Optimizely.

USA    United Kingdom    Canada    France    Germany    Italy    Australia


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.

We know of 338,296 live websites using Optimizely in our records.

View Website List

Get a list of websites using Optimizely

Pro Screenshot

A/B Testing

Visual Website Optimizer

43,634 websites


29,926 websites

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Browse groups of technologies that we track.