Optimizely Usage Statistics

Websites using Optimizely

Download Lead List

Get a list of 984,328 websites using Optimizely which includes location information, hosting data, contact details, 431,290 currently live websites and 553,038 sites that used this technology previously.

Top 10k
Top 100k
Top 1m

Quantcast Top 10k
1,075 of 10,000


Quantcast Top 100k
4,178 of 100,000


BuiltWith Top Million
12,630 of 942,889


Entire Internet
330,603 of 365,377,542


Log in or Sign up for Free to see Optimizely history back another year to December 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
Google Conversion Tracking 20,564
Keen IO 17,877

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.


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 984,328 websites that have used Optimizely. We know of 431,290 live websites using Optimizely and an additional 553,038 sites that used Optimizely historically

View Website List

Get a list of websites using Optimizely

Pro Screenshot

A/B Testing

Visual Website Optimizer

54,601 websites


40,352 websites

Log in or Sign up for Free to see additional categories and competitors.

Browse groups of technologies that we track.