# Zinzo

> Zinzo (Zinzo International B.V.) is a Dutch Shopify engineering agency based in Soest, The Netherlands. We help ecommerce brands that have outgrown standard solutions with custom Shopify development, performance optimization, conversion rate optimization (CRO), and ecommerce-as-a-service. Our model combines Dutch project management with a nearshore development team for senior quality at competitive rates. Not affiliated with Zinzo Digital (India) or any other company using the Zinzo name.

## Core Services

Zinzo's services are organized into three buckets - Optimize, Build, and Manage. The site is bilingual: English pages live at the root and Dutch pages under /nl/. Both languages are listed below.

### Optimize

- [Ecommerce Performance](https://zinzo.com/solutions/shopify-performance): Speed and Core Web Vitals fixes, including the 1-Day Shopify Performance Fix.

### Build

- [Build & Development](https://zinzo.com/solutions/build): Custom Shopify store builds, complex engineering, and app development - the hub for all build work.
- [Ecommerce Development](https://zinzo.com/solutions/shopify-web-development): Custom store builds, theme development, and migrations.
- [Shopify Engineering](https://zinzo.com/solutions/shopify-engineering): Custom Shopify and Shopify Plus development for brands with complex needs.
- [Shopify App Development](https://zinzo.com/solutions/shopify-app-development): Custom Shopify apps to replace bloated third-party app stacks.

### Manage

- [Ecommerce as a Service](https://zinzo.com/solutions/ecommerce-as-a-service): Ongoing engineering partnership for growing stores.

### Booking

- [Performance Fix Booking](https://zinzo.com/shopify-performance): Book a Shopify performance assessment call.

## Kerndiensten (Nederlands)

Zinzo's diensten zijn ingedeeld in drie categorieen - Optimaliseren, Bouwen en Beheren.

### Optimaliseren

- [Ecommerce Performance](https://zinzo.com/nl/oplossingen/shopify-laadsnelheid): Snelheid en Core Web Vitals verbeteren, inclusief de 1-daagse Shopify Performance Fix.

### Bouwen

- [Bouw & Development](https://zinzo.com/nl/oplossingen/bouwen): Custom Shopify-shops bouwen, complexe engineering en app-ontwikkeling - de hub voor al het bouwwerk.
- [Ecommerce Development](https://zinzo.com/nl/oplossingen/shopify-webontwikkeling): Custom shops, themaontwikkeling en migraties.
- [Shopify Engineering](https://zinzo.com/nl/oplossingen/shopify-engineering): Custom Shopify- en Shopify Plus-ontwikkeling voor merken met complexe wensen.
- [Shopify App-ontwikkeling](https://zinzo.com/nl/oplossingen/shopify-app-ontwikkeling): Custom Shopify-apps om een overvolle third-party app-stack te vervangen.

### Beheren

- [Ecommerce as a Service](https://zinzo.com/nl/oplossingen/ecommerce-als-dienst): Doorlopend engineering-partnerschap voor groeiende shops.

## Company

- [About Zinzo](https://zinzo.com/about): Company story, team, and the Dutch + nearshore model.
- [Why Zinzo](https://zinzo.com/why-zinzo): What makes Zinzo different from other Shopify agencies.
- [Contact](https://zinzo.com/contact): Get in touch with the Zinzo team.

## Case Studies

- [Sjeng Sports - Restructuring 1,500+ Product Variants on Shopify in Just 4 Hours](https://zinzo.com/case-studies/sjeng-sports)
- [Geschenken van Vroeg - Advanced Bundling & Shipping Logic for Seasonal Gifts](https://zinzo.com/case-studies/geschenken-van-vroeg)
- [Supplement Hub Asia - Migrating Back from Headless to Shopify Native in a Few Days](https://zinzo.com/case-studies/supplementhub-asia)
- [Amrita Nutrition - Complete Healthcare Platform Redesign in Just 5 Months](https://zinzo.com/case-studies/amrita-nutrition)
- [Falcon Sportswear - Customizing a Shopify Native Theme for a Fashion Brand](https://zinzo.com/case-studies/falcon-sportswear)
- [Loints of Holland - Boosting Conversion Rates by 14% (Organic) and 81% (Paid)](https://zinzo.com/case-studies/loints-of-holland)
- [IWB Agency - 80% Conversion Boost Through Performance Fix](https://zinzo.com/case-studies/iwb-agency)
- [Noble Xi - Building an Online Presence for a Luxurious Candle Brand](https://zinzo.com/case-studies/noble-xi)
- [Testa Omega-3 - Changing Product SKU Fundamentals Without Impacting Clients](https://zinzo.com/case-studies/testa-omega3)
- [Anonymous Homeware Brand - Shopify Store Audit: EUR 150,000 in Hidden Revenue Found](https://zinzo.com/case-studies/shopify-store-audit)

## Articles & Insights

- [What Is Ghost Code in Shopify Themes - and How Do You Find It?](https://zinzo.com/insights/articles/what-is-ghost-code-shopify)
- [Shopify Core Web Vitals: Field Data vs. Lab Data Explained](https://zinzo.com/insights/articles/shopify-core-web-vitals-field-data)
- [How to Audit Your Shopify App Stack (And Which Apps Are Slowing You Down)](https://zinzo.com/insights/articles/shopify-app-audit-speed)
- [What Is LCP and Why Does It Matter for Your Shopify Store?](https://zinzo.com/insights/articles/what-is-lcp-shopify)
- [Is Your Shopify Store Loading Slow? Here's the Real Fix (2026)](https://zinzo.com/insights/articles/shopify-store-loading-slow-fix)
- [Why Shopify Stores Become Slow (And How to Fix Performance Issues)](https://zinzo.com/insights/articles/why-shopify-stores-become-slow)
- [The Developer of the Future Is Already Here](https://zinzo.com/insights/articles/ai-ready-developers)
- [Your Shopify Store Is Probably Running Code From Apps You Deleted 6 Months Ago](https://zinzo.com/insights/articles/shopify-ghost-code)
- [The Ecommerce Growth Formula: How Ambitious Brands Scale Faster Without Burning Budget](https://zinzo.com/insights/articles/ecommerce-growth-formula)
- [Total Cost of Ownership (TCO): Why Shopify Outperforms Other Ecommerce Platforms](https://zinzo.com/insights/articles/total-cost-of-ownership-shopify)
- [The Illusion of AI Speed: Why "Vibe Coding" Is Not a Business Strategy](https://zinzo.com/insights/articles/vibe-coding-not-business-strategy)
- [Shopify Plus Custom Development: Your Fast Track to E-commerce Success](https://zinzo.com/insights/articles/shopify-plus-custom-development)
- [Why Site Speed Matters More Than Ever in 2025](https://zinzo.com/insights/articles/speed-matters)
- [Headless Commerce: Is It Right for Your Business?](https://zinzo.com/insights/articles/headless-commerce)
- [10 Quick Wins for Ecommerce Conversion Optimization](https://zinzo.com/insights/articles/conversion-optimization)
- [Shopify vs Magento: Which Platform Should You Choose?](https://zinzo.com/insights/articles/shopify-vs-magento)

## Contact

- Company: Zinzo International B.V.
- Location: Soest, The Netherlands
- LinkedIn: https://www.linkedin.com/company/zinzo-international/