UX

UX Design and Conversion: How Small Changes Increase Sales

A case study showing how UX optimization translated to a 40% increase in conversion for an online store.


"We have 80 thousand visits per month, but sales are stagnant" - that's how our conversation with an online fashion store owner began. Sound familiar? It's one of the most common e-commerce problems: traffic is there, conversion isn't.

+40% conversion increase after 3 months of UX optimization

Diagnosis: where are customers "leaking"?

Before any changes, we spent a week on analysis. We connected Hotjar, analyzed Google Analytics, conducted 12 customer interviews. The results were clear:

1.2% conversion before
73% checkout abandonment
60% mobile traffic
15 form fields

Main problems? Checkout was a nightmare - 15 fields on one page, no guest checkout, form unreadable on mobile. But that's not all...

5 changes that made a difference

Change #1
Checkout form from 15 to 8 fields

We removed: middle name, fax (!), "how did you hear about us", separate invoice form. Combined street with house number. Address autocomplete by postal code.

Change #2
Guest checkout as default option

"Register to continue" was killing conversion. Now registration is an option at the end: "Want to save data for next time?" - 34% of customers still register.

Change #3
Trust signals at payment

We added: bank logos, SSL padlock icon, "Secure payments" badge, 14-day return info. Effect? -23% abandonment on payment page.

Before vs. After - specific changes

Before optimization
  • 15 form fields on one page
  • Registration required before purchase
  • No payment security information
  • Form unreadable on mobile
  • Hidden shipping cost (surprise at the end)
After optimization
  • 8 fields split into 3 steps
  • Guest checkout as default
  • Trust badges + bank logos
  • Large fields, numeric keyboard
  • Shipping cost visible from cart

Results after 3 months

1.2% → 1.7% conversion
-38% checkout abandonment
+15% average cart
+62% mobile orders
Is your conversion below 2%?

We'll conduct a free mini UX audit of your checkout and point out the 3 biggest problems to fix.

Category: UX
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Karolina Nowakowska

Halo Soft Expert

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