Let's say you have new text for your homepage. With this tool, you can test the effectiveness of your new text versus the old one. This is called an A/B Split Test.

It means both versions of the page will be online side by side, some people will only see page A, others only see page B. After the test has run a while, you can come back and check the performance of each variation, in terms of converting users to one of your target pages.