WordPress Code: A/B Test Featured Images

A/B testing is one of the easiest way to optimize the performance of your campaigns. You can use it to figure out which ads or images are effective. It is even possible to A/B test featured images. Here is a code snippet that lets you do just that:

Here is how this works: it creates a meta box where you can add two different featured images. It uses a simple function to load a random image. You can use your Analytics tool to see which image is clicked on more often.