With Switchy, you can use a link rotator to realise A/B testing, for example to test which of your home page perform the best.
In the link edition, click on Advanced options :
In the Rotator - AB Testing section, click on the button "Add a destination", copy the link of destination you want to redirect your user.
After that choose a percentage, the shared link will redirect users proportionally to the percentage you chose, thanks to that you can test which of your landing page is the more efficient :
