Lee Willis

This plugin lets you set up two different templates with differences that you think might increase conversions, serve these different templates up to users, and track their activity using custom segments in Google Analytics.
Alternatively you can use it to “choose” a particular theme by setting a URL parameter so you can experiment using different themes yourself (Particularly useful when developing your “split” themes!

SES Theme Split Test

Split test your wordpress theme, and track test using Google Analytics user defined values.

jonslaught

arthuracs

bradtaylorsf

This plugin helps you configure your WordPress website to use Optimizely X. If you are new to Optimizely or have started using Optimizely Classic (not X), then please use the <a href="https://wordpress.org/plugins/optimizely/" rel="ugc">Optimizely Classic plugin</a>.
Optimizely is a dramatically easier way for you to improve your website through A/B testing. Create an experiment in minutes with our easy-to-use visual interface with absolutely no coding or engineering required. Convert your website visitors into customers and earn more revenue today!
This plugin helps you configure your WordPress website to use Optimizely. After setting up an account at Optimizely.com, you simply enter your Optimizely project code in the plugin’s configuration page and you’re ready to start improving your website using Optimizely. Built for testing headlines, this plugin allows you to, create new experiments, see your experiment results, launch winners and much more all without leaving WordPress.
You’ll need an <a href="http://www.optimizely.com" rel="nofollow ugc">Optimizely.com</a> account to use it.

Optimizely X

This plugin helps you configure your WordPress website to use Optimizely X, a dramatically easier way to improve your website through A/B testing.

SES Theme Split Test vs Optimizely X