Headless architecture
Designed a composable stack with Next.js, headless CMS, and a dedicated commerce API layer for flexibility.
01 · About the product
Fashion commerce, built to convert
StyleVault is a direct-to-consumer fashion brand selling across North America and Europe — known for limited drops, influencer collabs, and a loyal repeat customer base.
The original monolithic store couldn't keep up with traffic spikes during product drops. Page loads slowed, checkout abandoned, and the marketing team couldn't publish campaigns without developer help.
We replatformed to a headless architecture — decoupling the storefront from content, inventory, and payments so each layer could scale independently.
The new experience prioritizes mobile shopping: quick-add flows, size guides, real-time stock indicators, and a one-page checkout tuned for conversion.
38%
Conversion lift
2.1s
Largest contentful paint
3×
Peak traffic handled
Headless storefront
Next.js frontend with a composable CMS — marketing ships pages without deploys.
Smart inventory
Real-time stock sync across warehouse, retail, and marketplace channels.
Optimized checkout
One-page checkout with express pay, address autofill, and cart recovery.
Analytics & growth
Event tracking, A/B testing hooks, and merchandising dashboards for the growth team.
02 · What we did
Rebuilt for performance and growth
End-to-end replatforming — from architecture and design through migration, launch, and post-go-live optimization.
Catalog & PIM migration
Migrated 4,000+ SKUs with variants, collections, and SEO metadata — zero downtime cutover strategy.
Checkout optimization
Rebuilt cart and checkout flows with express payment, dynamic shipping, and abandoned-cart recovery.
Performance engineering
Image CDN, edge caching, and code splitting to hit sub-3s LCP on mobile across core templates.
Ops & fulfillment integration
Connected warehouse, 3PL, and returns systems so order status updates in real time for customers.
03 · Our process
Migration without missing a drop
A launch plan built around the brand's release calendar — migrate safely, validate conversion, then scale.
- 01
Audit & roadmap
Benchmarked the legacy store — performance, conversion funnels, integrations, and content workflows.
- 02
Experience design
Redesigned PLP, PDP, and checkout for mobile-first shopping with the brand's visual identity intact.
- 03
Platform build
Implemented headless frontend, CMS models, and commerce APIs with staging environments for QA.
- 04
Data migration
Migrated products, customers, and order history with validation scripts and rollback plans.
- 05
Soft launch
Routed a percentage of traffic to the new store, monitored conversion and error rates, and tuned performance.
- 06
Full cutover & optimize
Completed DNS switch during a low-traffic window, then iterated on CRO experiments and peak-load readiness.
04 · Delivery
What we shipped
A faster, more flexible storefront that marketing and ops teams could run independently — ready for the next product drop.
Headless storefront
Next.js shop with PLP, PDP, search, and editorial landing pages.
CMS & merchandising
Self-serve content models for campaigns, lookbooks, and collection pages.
Optimized checkout
One-page checkout with express pay, tax, and multi-currency support.
Inventory & fulfillment sync
Real-time stock and shipping updates across warehouse and 3PL partners.
Analytics foundation
Event schema, conversion tracking, and dashboard for growth experiments.
Migration & launch runbook
Zero-downtime cutover plan, rollback procedures, and post-launch support.
Case study by Devcorebit · StyleVault