This case study documents the complete process through which we increased an online fashion store conversion rate by 35% — from 2.1% to 2.84% — through a UX redesign focused on mobile, checkout, and performance. The project took 8 weeks, and results were visible from the first month after launch.
Project Context
The client is an online fashion store in Romania with approximately 500 active products — women clothing and accessories, with average prices between 150 and 400 lei. The site had been live for 3 years, built on WooCommerce with a customized premium theme.
Initial Situation
| Metric | Value |
|---|---|
| Monthly visits | ~25,000 |
| Conversion rate | 2.1% |
| Overall bounce rate | 58% |
| Mobile bounce rate | 78% |
| Mobile traffic | 72% |
| Load speed (LCP) | 4.8 seconds |
| Cart abandonment | 74% |
| Average order value | 285 lei |
| Monthly revenue | ~150,000 lei |
The Core Problem
Traffic was good and growing (effective Facebook Ads and Google Shopping campaigns), but the conversion rate had been stagnating at 2.1% for over a year. On mobile — where 72% of traffic came from — the 78% bounce rate signaled a disastrous experience. Effectively, 3 out of 4 mobile users left without interacting.
The UX Audit: What We Discovered
The complete UX audit took 2 weeks and combined quantitative analysis (analytics, heatmaps) with qualitative analysis (user testing with 8 participants) — revealing problems the client had not noticed because they only used the site on desktop.
Quantitative Analysis
Google Analytics 4:
Microsoft Clarity (session recordings + heatmaps):
PageSpeed Insights:
Qualitative Analysis (User Testing)
We recruited 8 participants (women aged 25-45, active online shoppers) for 30-minute tests on their own phones:
Issues identified:
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Implemented Solutions
Based on the audit, we implemented solutions in 4 categories: performance, product page, checkout, and mobile UX. Each solution addressed a specific problem identified in the audit.
1. Performance — From 4.8s to 1.9s LCP
Problems resolved:
Solutions:
Result: LCP from 4.8s to 1.9s, CLS from 0.34 to 0.04, INP from 380ms to 120ms.
2. Product Page — Mobile-First Redesign
Problems resolved:
Solutions:
3. Checkout — Radical Simplification
Problems resolved:
Solutions:
4. Trust Elements — Confidence at Every Step
Solutions:
Results: Before vs. After
Results were measured by comparing 3 months pre-redesign (October-December) with 3 months post-redesign (January-March), on the same traffic channels and similar advertising budgets.
Comparison Table
| Metric | Before | After | Change |
|---|---|---|---|
| Conversion rate | 2.10% | 2.84% | +35.2% |
| Overall bounce rate | 58% | 44% | -24.1% |
| Mobile bounce rate | 78% | 52% | -33.3% |
| LCP (load speed) | 4.8s | 1.9s | -60.4% |
| CLS (visual stability) | 0.34 | 0.04 | -88.2% |
| Cart abandonment | 74% | 61% | -17.6% |
| Average order value | 285 lei | 312 lei | +9.5% |
| Monthly revenue | ~150,000 lei | ~210,000 lei | +40% |
| Internal search sessions with no results | 23% | 8% | -65.2% |
Revenue Impact Analysis
The 40% revenue increase (from ~150,000 to ~210,000 lei/month) comes from two combined sources:
At a constant traffic of ~25,000 visits/month, the difference is ~60,000 lei in additional monthly revenue — 720,000 lei per year. The total investment in the redesign was ~15,000 lei, recovered in less than 8 days.
What We Learned
Several valuable lessons that apply to any e-commerce UX redesign project — every redesign project must start from data, not aesthetic preferences. Moreover, the results achieved must be protected post-launch through a solid WordPress maintenance plan that ensures continuous monitoring and rapid intervention for regressions.
Lesson 1: Mobile-first is not optional
72% of traffic came from mobile, but the site had been designed on desktop and "adapted" for mobile. The redesign started from mobile and then extended to desktop — a complete reversal of approach.
Lesson 2: Performance is UX
The speed improvement from 4.8s to 1.9s likely had the greatest individual impact on bounce rate. A slow site cannot be saved by good design — users leave before they see it.
Lesson 3: Guest checkout is mandatory
Forcing account creation reduced conversions by an estimated 15-20%. After enabling guest checkout, the checkout completion rate increased immediately.
Lesson 4: Trust is built visually
Reviews, security badges, and a visible return policy did not require significant technical effort, but had a measurable impact on checkout conversion rate.
Lesson 5: Data beats opinions
The client was convinced the homepage was the main problem. The data showed the homepage performed reasonably well — the problems were on the product page and checkout. Without the audit, we would have invested time in the wrong place.
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Frequently Asked Questions
How much does a UX redesign for an online store cost?
A complete UX redesign (audit + design + implementation + testing) costs between 8,000 and 25,000 lei for a WooCommerce store of medium complexity. The investment is typically recovered in 1-3 months from increased conversions.
How long does a UX redesign project take?
A complete project takes 6-10 weeks: 2 weeks for audit, 2-3 weeks for design, 2-3 weeks for implementation, 1 week for testing and launch. Simpler projects (checkout optimization, performance) can be completed in 3-4 weeks.
Can I make UX improvements without a full redesign?
Yes. Many improvements have significant impact without a full redesign: enabling guest checkout, performance optimization, sticky CTA on mobile, adding social proof. These can be implemented in 1-2 weeks and can increase conversions by 10-15%.
How do I measure the ROI of a UX redesign?
Compare the conversion rate and revenue over 3 months before vs. 3 months after, on the same traffic channels. Formula: (Additional monthly revenue x 12) / Project cost = Annual ROI. In our case study: (60,000 x 12) / 15,000 = 4,800% ROI.
What do I do if I do not have enough traffic for A/B testing?
Use sequential testing (before/after) with a minimum of 4 weeks per period, supplemented with qualitative user testing (5-8 participants) and heatmap/recording analysis. You do not need A/B testing for obvious changes (performance, guest checkout, sticky CTA).
Every online store has untapped conversion potential. Request a UX audit and discover where you are losing sales — the results may surprise you.
