Every click, scroll, and purchase on your ecommerce store holds valuable data—A/B testing unlocks that data to reveal what truly drives conversions and sales. On landing pages alone, well-executed A/B tests can boost conversions by as much as 30%.
Yet, despite its potential, many ecommerce merchants still struggle to execute A/B tests effectively, often facing challenges with test design, traffic volume, or interpreting results. A/B testing isn’t about guessing—it’s about letting your customers tell you what works.
The following seven case studies showcase real-world examples of successful A/B tests. Each one breaks down a real-world test, the results it delivered, and the lessons you can steal to fine-tune your own online store for maximum conversions.
Clear Within is a skincare brand founded by two friends who struggled with persistent acne. Their core product is an all-in-one vitamin supplement designed to address the root causes of acne using trusted, science-backed ingredients. Operating with a lean team, Clear Within focuses heavily on optimizing their ecommerce operations for efficiency and growth.
What Was Tested:
The Clear Within team ran an A/B test using Shogun to optimize their product page. The test focused on the placement of the “Add to Cart” button.
Results:
The results were clear and statistically significant after just three days:
Takeaways:
Clarks is an international shoe manufacturer and retailer, known for its quality footwear and accessories. With a significant online presence, Clarks continually seeks to enhance user experience and boost online sales.
What Was Tested:
Clarks conducted an A/B test to determine the impact of prominently displaying their free shipping offer on conversion rates. In a case study by Conversion, the following variants were tested:
Results:
The test revealed that Version B led to a 2.6% increase in conversion rates, resulting in an additional £2.8 million in revenue.
Takeaways:
Beckett Simonon is an online retailer specializing in handcrafted leather shoes, known for its commitment to ethical business practices and sustainability. The brand prioritizes transparency, quality craftsmanship, and sustainable sourcing in every product it sells.
What Was Tested:
Beckett Simonon conducted a comprehensive qualitative and quantitative conversion analysis to identify opportunities for improvement. They tested the impact of integrating story-driven visuals and messaging focused on sustainability and product quality across their website. You can see the before and after variant visuals provided by Marquiz.
Results:
The results were clear:
The emphasis on transparency and aligning brand values with customer expectations proved highly effective.
Takeaways:
SmartWool is an apparel merchant specializing in high-performance wool-based clothing and accessories, particularly for outdoor activities.
What Was Tested:
SmartWool aimed to enhance user engagement and increase revenue by redesigning their product pages to align with best practices.
Results:
The redesigned product page led to a 17.1% increase in average revenue per visitor, indicating that users were more likely to make purchases with the improved page design.
Takeaways:
Metals4U is the UK’s leading online supplier of metal products, catering to industries and individual consumers. Known for their extensive product range, they set ambitious goals to scale their operations and dominate the online metal supply market.
What Was Tested:
Metals4U partnered with a CRO agency to optimize their site performance through iterative experimentation. Below are the variants provided by Conversion.
Experiment 1: Delivery Information Visibility
Experiment 2: Trust Signals in Checkout
Results:
Over the course of 12 months:
Takeaways
T.M. Lewin is a UK-based heritage retailer specializing in high-quality shirts and accessories. With a long history of craftsmanship and customer service, they aimed to enhance their ecommerce performance and improve their multi-buy offering. Here’s how they did it:
What Was Tested
T.M. Lewin tested key friction points in their customer journey. Their experiments focused on three core areas:
Experiment 1: Sizing and Fit Concerns
Experiment 2: Multi-Buy Offers Communication
Results:
The experiments delivered clear results:
These changes proved particularly impactful on mobile devices, driving significant revenue growth during peak shopping periods.
Takeaways:
Swiss Gear, known for its durable backpacks and travel gear, is a globally recognized brand trusted by travelers and professionals alike. To stay competitive in the crowded ecommerce market, Swiss Gear set out to improve the user experience on their product detail pages (PDPs).
What Was Tested:
Swiss Gear conducted A/B testing focused on simplifying and optimizing their product detail pages:
Results:
The impact of the changes was significant:
Takeaways:
From optimizing product page layouts and building trust through transparency to fine-tuning call-to-action buttons and simplifying navigation, the seven case studies reviewed in this guide demonstrate how even small, data-driven changes can deliver significant results.
The best part? You don’t need an extensive team, endless hours, or a massive budget to start seeing these results. With Shogun A/B Testing, you can effortlessly set up and run tests directly within your store—no coding skills or third-party platforms required. This means you can experiment, learn, and optimize with confidence, all while keeping your focus on growing your business.
Indeed, running an experiment with Shogun A/B Testing is incredibly easy. All you need to do is follow these three steps:
Step 1. After downloading Shogun A/B Testing, open up the app and select the “Create test” button in the top-right corner of your screen. Then, choose which type of test you want to run. Your options include:
Step 2. Configure your test. For example, if you chose to run a template test, you’ll be able to create your new variant by duplicating the original version of the template and then making any changes you want to it with Shopify’s built-in theme editor—that way, you won’t need to learn how to use any third-party design tools to get your test up and running.
You can also determine how the percentage of traffic is divided between your new variant and the original version as well as whether the test will only be shown to a specific segment of your visitors (custom audiences can be built based on the type of device the visitor is using, where they are physically located, and several other factors).
Whenever you’re ready, click on the “Review” button and confirm that you would like to publish the test.
Step 3. After the test has been published, you’ll be able to keep track of how the original version and the new variant are performing in real-time. Shogun allows you to review and compare metrics such as the conversion rate, average order value, top clickthrough destinations, and much more.
It’s important not to end your test too early—if you don’t collect enough data, your results won’t be reliable. Conveniently, Shogun A/B Testing does all the math for you and will let you know exactly when your test is ready to conclude.
Overall, this app gives you everything you need to conduct your own ecommerce experiments and extract meaningful insights from the results.
