A/B Testing lets you experiment with one item against the other, one page against the other, and so much more.
You can test your opt-in pages, sales pages, checkouts, order bumps, upsells, and thank you pages right inside the Funnel Builder.
![Set up the A/B test](https://funnelkit.com/wp-content/uploads/2024/02/checkout-click-a-b-test.png)
Let's get familiar with some of the key terms that we'll be using while we configure the tests.
Original variant: The original variant of the page that you want to test out.
You can create a variant by:
Create duplicate from original: Creating a duplicate variant from the original version.
Select a template from other funnels: Select a template from another funnel
Here's an example of how A/B Testing works.
Let's say you want to test if a VSL-based upsell page converts better or text-based. Then you can A/B test the two variants to find out the answer.
If you're wondering which of the two you should have running on your store, just perform an A/B test to find out which of the two converts better.
After the numbers show up, you can declare a winning variant.