Shopify Platinum Partner
CRO & Experimentation

Shopify CRO That Turns Traffic Into Revenue

The cheapest growth is the traffic you already have. SDG runs Shopify conversion-rate optimization as engineering and evidence, not guesswork, so more of your visitors buy. A Shopify Platinum Partner since 2006.

Since 2006

Shopify’s original enterprise partner, with nearly two decades of experience no rival can match.

Shopify Platinum

Shopify’s highest partner tier, reserved for the few building at the very top of the platform.

Build Award Winner

Winners of the Shopify Build Award for our flagship engineering work on Glossier.

Trusted by Shopify

The team Shopify calls to de-risk and rescue its most critical enterprise builds.

Trusted by brands that define their categories

Apple
SKIMS
Netflix
Nike
Barnes & Noble
Mattel
Shopify
Glossier
lululemon
L’Oréal
LVMH
MoMA Design Store

Conversion as engineering

Most CRO stops at swapping button colors. We treat conversion as a system: the paths people take, the friction in the funnel, and the technical reasons carts get abandoned. Then we fix the causes, in design and in code, with the same senior team that builds at enterprise scale.

Research, testing, and iteration

We ground decisions in analytics, session insight, and UX review, then validate with structured A/B and multivariate testing so wins are real and repeatable. Our award-winning Glossier build is what happens when distinctive design and relentless conversion focus are engineered together.

Speed is conversion

A faster store converts better, full stop. We engineer Core Web Vitals and page speed as part of CRO, because the fastest path to more revenue is often a fast storefront. Explore our case studies or our UX/UI design practice.

Full-service Shopify

Everything your store needs, from one senior team

SDG is a full-service Shopify partner. The same senior engineers and designers behind enterprise replatforms also take on focused projects, ongoing support, and everything in between — for brands large and small. One accountable team, end to end.

Strategy & architecture

Roadmaps, technical architecture, and platform decisions grounded in nearly two decades on Shopify.

UX/UI design

Brand-led storefront design and interface work, engineered to convert as well as it looks.

Storefront development

Theme and fully custom front-end builds, from a single template to a complete storefront.

Headless & composable

Hydrogen, Oxygen, and custom React storefronts engineered to hit performance budgets others miss.

Replatforming & migrations

Moves onto Shopify and Shopify Plus without downtime or data loss, including the largest catalogs in retail.

Systems & data integration

ERP, OMS, PIM, CRM, and bespoke middleware — the back-office systems global retail runs on.

Performance engineering

Core Web Vitals, speed, and reliability treated as a baseline, not an afterthought.

Shopify SEO

Technical SEO, site architecture, and structured data so the right buyers find your store.

CRO & experimentation

Conversion-rate optimization and A/B testing that turn existing traffic into more revenue.

Support & retainers

Ongoing monthly support, maintenance, and enhancement — a senior team on call for your store.

Accessibility

WCAG-compliant builds and audits, so your storefront works for every customer.

Apps & custom functionality

Custom Shopify apps, checkout extensions, and bespoke features the platform doesn’t ship out of the box.

Frequently asked questions

What is Shopify CRO?

Conversion-rate optimization is the practice of increasing the share of visitors who buy, through UX improvements, A/B testing, funnel and checkout work, and performance, so you earn more from existing traffic.

Do you run A/B tests?

Yes. We run structured A/B and multivariate experiments grounded in analytics and UX research, so wins are validated rather than guessed.

Do you implement the changes, or just recommend them?

Both. Because we are designers and senior engineers, we identify the opportunities and build the changes, including custom development where needed.

How do you measure success?

Against the metrics that matter to your business: conversion rate, average order value, revenue per session, and funnel completion, measured with proper experiment design.

Does site speed affect conversion?

Significantly. We engineer Core Web Vitals and page speed as part of CRO, because faster stores convert better and rank better.

Do you do CRO for smaller stores?

Yes. We are full-service and work with brands large and small. CRO engagements are sized to your traffic and goals.

Start a project

Bring us your most complex build.

A replatform that can’t slip. A catalog no one else will touch. An enterprise build that simply has to be flawless. That’s the work we live for.