• Segment CDP
  • Algolia
  • Klaviyo
  • Shopify Plus
  • GA4
  • Nosto personalization engine

Boosting Revenue Without Increasing Ad Budget

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Client challenge

The marketing team reported high monthly traffic from paid sources but flat revenue growth. ROAS was declining. The company used standard product pages with generic recommendations, no segment-based personalization, and basic filters

Our solution

 We launched a 3-week CRO & personalization sprint

Audience Segment Detection

Segment detection: visitors were split into DIYers, mechanics, fleet buyers

Fitment-Based 
Category Sorting

Fitment-aware category sorting based on common car models

Behavioral Personalization Blocks

Personalized banners and recirculation blocks based on behavior (e.g., “Still need front brakes for your Toyota Camry?”)

UX Performance Optimization

UX speed upgrades to improve performance score

Dynamic Fitment Bundles

Dynamic bundle suggestions with “Recommended for your car”

Conversion Wins
Without Budget Boosts

Results & Measurable Impact

23

%

in sales

without additional traffic

Better product discoverability and upsell conversion

-18

%

drop

in bounce rate

Higher return visitor engagement and order frequency

Summary:

 This project highlighted the power of UX + personalization as a growth engine. Instead of buying more traffic, we helped the client get more out of what they already had – and aligned the customer journey with intent, segment, and context.

✅ Traffic is expensive – conversion is leverage

Ready to bring your vision to life?

Let’s chat about how we can design an experience that not only captivates but also converts and grows your business. 🚀

Get started

PORTFOLIO

Our Portfolio

Explore our portfolio to see the diverse range of projects we have successfully completed. They prove our commitment to excellence and impactful results.

GA4Shopify

Boosting Revenue Without Increasing Ad Budget

The marketing team reported high monthly traffic from paid sources but flat revenue growth. ROAS was declining. The company used standard product...
Read More

Shopify

Building Trust to Reduce Cart Abandonment

New users landed on product pages, added items to cart… but never completed checkout. Usability tests and session recordings revealed a clear...
Read More

GTMHotjarShopify

Optimizing Mobile Conversion in a High-Traffic Store

Although mobile traffic made up 63% of the total sessions, mobile conversion rate remained stuck below 1%. Product pages loaded slowly, were...
Read More

GA4, Shopify

Boosting Revenue Without Increasing Ad Budget

The marketing team reported high monthly traffic from paid sources but flat revenue growth. ROAS was declining. The company used standard product pages with generic recommendations, no segment-based personalization, and basic filters

Shopify

Building Trust to Reduce Cart Abandonment

New users landed on product pages, added items to cart… but never completed checkout. Usability tests and session recordings revealed a clear pattern: users didn’t trust the product or the site — no signs of compatibility, no warranty information, no signals of authenticity

GTM, Hotjar, Shopify

Optimizing Mobile Conversion in a High-Traffic Store

Although mobile traffic made up 63% of the total sessions, mobile conversion rate remained stuck below 1%. Product pages loaded slowly, were cluttered, and lacked trust elements. Checkout had multiple friction points on smaller screens

Magento 2, Vue.js

Eliminating Fitment-Based Returns (DACH Market)

A mid-sized B2C & B2B retailer operating in Austria and Germany had an 18% return rate — the majority due to users selecting the wrong parts. Their PDP lacked clarity, and filtering by vehicle was hidden or unavailable. They also served workshops and fleets with unique compatibility needs

GTM, React.js

VIN Lookup & Sticky Fitment Bar Integration

A leading German automotive eCommerce store faced a consistent problem: over 20% of returns were caused by customers ordering parts that didn’t fit their vehicles. Product pages lacked compatibility information, and filters didn’t account for car model specifics. This resulted in user frustration, poor reviews, and increased customer support costs.

UI/UX

TechGear CRO Case

TechGear is a leading online retailer of high-end consumer electronics, including laptops, gaming accessories, and home automation devices.
Shops

Angular, JavaScript

MoveBoard Project

MoveBoard is an innovative application designed to streamline package transportation processes, developed by Kozak Group. Focused on front-end development, the project involved repairing existing functionality and addressing bug fixes to enhance user experience.
Logistics

Blockchain

AllianceBlock Project

AllianceBlock is a pioneering blockchain-based crowdfunding platform developed by Kozak Group, designed to securely conduct initial coin offerings (ICOs) while generating and distributing tokens. This full-stack development project involves creating front-end modules and microservices from scratch, aimed at disrupting traditional fundraising and financing models, particularly for early-stage projects.
Finance

Magento

Vintage Sport

Vintage Sports Fashion is a cutting-edge e-commerce platform developed by Kozak Group, dedicated to offering a curated selection of unique vintage sports apparel and accessories. The project emphasizes both aesthetic appeal and high performance, featuring a full-stack development approach that ensures seamless functionality across the site.
Fashion

Magento

Fashionesta

Fashionesta is an advanced multistore e-commerce platform developed by Kozak Group, designed to meet the diverse needs of fashion retailers and consumers alike. Leveraging cutting-edge technologies like Varnish for high-speed caching and Sphinx for optimized search functionality, Fashionesta provides a seamless and engaging shopping experience.
Fashion

We specialize in IT staff augmentation services and solutions for ecommerce.
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Contact Info

Address:

Yevhena Konovaltsia St, 36d Kyiv, Ukraine 02000

Email:

info@kozak-group.com

Phone:

+380987568230

Address: 36d Konovaltsia St., Kyiv, Ukraine

Email: info@kozak-group.com

Phone:+380987568230

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