What Is a Page Test Against Already Existing Pages (Split URL Test)?

When creating a test page and once selected the page to test (the control page), you may decide whether to test it against new variant(s) specifically designed for this test, or test the control page against already-existing pages.

When you test a page against a new variant, by default, the variant created will be an exact copy of the control page.

Instead of editing the alternative, if you want to test the previously selected page against one or more already existing pages on your website, just check “Test against an already existing page” box and select the variant pages below. You can search for it by typing its title, its URL, or its identifier.

You can then complete and run the A/B test as any other page A/B test.

Note that in an A/B test of two existing pages on your website, the traffic coming to either of the two pages will be divided into two. So, half of the visitors who arrive to any of the two pages (for example, https://example.com/control-page/ and https://example.com/variant-b-page/), will only be able to see the control page and the other half will see the variant B page. If a visitor who should see the control page (since he has accessed the site previously and has been assigned that page) tries to visit variant B, he will be automatically redirected to the control page, and the same but in reverse will happen for those visitors who have been assigned variant B.

You may also be interested in more detailed information on how to create a Page A/B Test.