Optimizely

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

The Optimizely plugin allows you to use Optimizely to improve your website with A/B testing. 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 Optimizely.com account to use this plugin.

Installation

  1. Activate the Optimizely plugin
  2. Sign up for an Optimizely account
  3. Create an API Token here: API Tokens, and enter your API token in the Configuration Tab of the Plugin, then select a project to start testing

The Optimizely website has more details on setting up the service and along with a blog post on best practices.