Headless Architecture for Global Retail Brand

The Challenge

A global fashion retailer with 2M+ monthly visitors was running a legacy Magento 1 storefront. Page load times averaged 4.2 seconds on mobile, and the checkout flow had a 68% abandonment rate. Their engineering team of three could not keep up with merchandising requests because every content change required a full deployment cycle.

The brand operated in 12 countries with localised pricing, currency, and shipping rules. Their existing architecture required maintaining 12 separate storefronts, each diverging further from the base with every sprint.

Our Approach

We implemented a headless commerce architecture with Shopify Plus as the commerce backend and Next.js 14 as the frontend, deployed on Vercel's Edge Network.

Product pages use Incremental Static Regeneration (ISR) with a 60-second revalidation window. Pages are pre-rendered at build time and served from the edge, but pricing and inventory data is fetched client-side from the Shopify Storefront API to ensure real-time accuracy. This approach delivers sub-800ms Time to First Byte globally while keeping prices current.

Localisation is handled through a single Next.js application with locale-based routing ("/en-us/", "/de-de/", "/ja-jp/"). Shopify Markets manages currency conversion, tax calculation, and duty estimation. Content is managed in a headless CMS (Sanity) with per-locale fields, allowing the merchandising team to update hero banners and collection descriptions without engineering involvement.

Checkout uses Shopify's native checkout with custom branding via Checkout Extensibility. We implemented one-click checkout via Shop Pay and added Apple Pay and Google Pay for mobile users. The streamlined checkout flow reduced abandonment from 68% to 41%.

Results