A/B Testing Short Links For Paid Campaigns

Testing two landing pages usually means running two different links, which splits your ad data and forces you to compare performance across separate URLs. A/B destination testing on a short link keeps one link live in the ad while routing visitors between destinations behind it.

Why a second link isn't a real A/B test

If a campaign runs Link A to landing page A and Link B to landing page B, any difference in results could come from the landing pages, the links, ad placement variance, or timing — the test isn't isolating one variable. A/B destination testing keeps the link identical across both arms of the test; only the destination changes behind it, so the comparison is actually about the landing page.

How routing rules split traffic

Short link routing rules support weighted rotation, so a link can send a set percentage of visitors to one destination and the rest to another — a 50/50 split, or something more conservative like 90/10 if you want most traffic on the proven page while a small share tests the alternative. The same rules support device and country targeting, so a test can also be scoped to a specific segment rather than all traffic.

Running it without touching the ad

Because the short link itself doesn't change, there's nothing to update in ad platforms, email sends, or anywhere else the link is already published. The routing rule change happens entirely in the dashboard and takes effect on the next click — useful when a campaign is already live and stopping it to swap links isn't an option.

Reading the result

Click analytics on the short link report totals, but the comparison that matters is what happens after the redirect — conversions on each destination page, not clicks on the link, since both arms of the test received the same link and the same click. If the destinations have their own analytics or a shared conversion event, that's the number to compare, not scan or click volume alone.

Where this test design falls short

A weighted split test needs enough total volume for the smaller share to produce a meaningful sample — a 90/10 split on a low-traffic link may take a long time to produce a usable result on the 10% arm. And a routing rule can only test destinations that already exist; it doesn't build or generate landing page variants, only route between ones you've made.