What is A/B Testing for QR Codes?
Understand how QR code A/B testing works in SMLLR and when to use it.
What is A/B Testing?
A/B testing (also called split testing) is a method of comparing two or more versions of something to see which one performs better. In the context of SMLLR QR codes, it means splitting your QR code traffic between two or more different destination URLs and measuring which one gets better engagement.
Example: You have a QR code on your restaurant's table card. You want to know whether linking it to your Instagram page or your Google Review page drives more useful customer actions. You create an A/B test:
- Version A (50% of scans) → your Instagram page
- Version B (50% of scans) → your Google Reviews page
After a week, you compare which one drove more follows/reviews, and make the winning version your permanent destination.
How A/B Testing Works in SMLLR
When a QR code is in an A/B test, each scan is routed to a variant according to the traffic split you set. For example, if you set a 60/40 split:
- 60% of scans → Version A
- 40% of scans → Version B
The routing is random and proportional — SMLLR does not alternate AB in a fixed pattern. Over time, the split converges to the ratio you set.
You can have up to 4 variants in a single A/B test.
When to Use A/B Testing
Comparing two different landing page designs to see which drives more conversions
Testing two promotional offers (20% off vs Free Shipping) to see which is more compelling
Comparing a WhatsApp CTA vs a booking page link to see which gets more customer contact
Testing a video versus a text page for a product explanation
Comparing two different Google Forms (short vs long) to see which gets more completions
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