A/B testing, also known as split testing or bucket testing, is an experiment where two different versions of a piece of content are tested on your audience. You create two versions of a web page or mobile app screen, variant A and variant B. The change can be a small headline, button, or a complete redesign of the page. Then, you randomly show one version to the other. In a split test, You create two versions of a website or app. The change can be a small headline, button, or a complete redesign of the page. Then, you randomly show one version to half your audience and another to the other half. You can also run multivariate tests, also known as A/B/n test to test more than 1 variation.