# Codestern

> Codestern is a York, UK web and mobile development agency. We build high-performance websites, web apps, iOS and Android applications, Shopify and WooCommerce stores, B2B wholesale platforms, and custom integrations (Xero, EPOS, CRM, APIs). We also offer technical audits, SEO, digital strategy, and ongoing support.

Machine-readable index for AI agents. Full detail: /llms-full.txt. Structured JSON: /api/agent.

## Services

- [Services overview](https://codestern.co.uk/services): Web, mobile, design, strategy, SEO, integrations, support
- [Technical audit](https://codestern.co.uk/technical-audit): Architecture, performance, security, and integration review
- [Web Development](https://codestern.co.uk/services#web-development): Custom websites and web applications built with modern, maintainable technology.
- [Mobile App Development](https://codestern.co.uk/services#mobile-app-development): iOS and Android applications—from discovery to App Store and Play Store release.
- [Brand & Design](https://codestern.co.uk/services#brand-design): Visual identity and design systems that reflect your business.
- [Digital Strategy](https://codestern.co.uk/services#digital-strategy): Data-informed strategies that align digital with business objectives.
- [SEO & Performance](https://codestern.co.uk/services#seo-performance): Search visibility and technical optimisation.
- [Custom Integrations](https://codestern.co.uk/services#custom-integrations): Connect web, mobile, and backend systems with third-party services.
- [Support & Maintenance](https://codestern.co.uk/services#support-maintenance): Ongoing support, updates, and maintenance for live sites and apps.

## Work & proof

- [Case studies](https://codestern.co.uk/case-studies): Client projects with outcomes and stack highlights
- [Wizard Alliance — B2B wholesale platform, Xero & field sales](https://codestern.co.uk/case-studies/wizard-alliance): Wizard Alliance is a UK B2B wholesaler in the fandom space. They needed a trade-ready platform before going to market—from zero customers to 300+ active accounts—with WooCommerce-quality ordering plus deep wholesale rules, Xero, and a field sales channel that simply did not exist off the shelf.
- [EC Pack — B2B wholesale: WooCommerce, Xero-led stock & accounts](https://codestern.co.uk/case-studies/ec-pack): EC Pack supplies packaging and supply products to trade buyers across the UK. Like many established wholesalers, they had never operated a proper B2B web channel—their teams lived in phone, email, and spreadsheets. The brief was to stand up a serious trade storefront on WooCommerce with the same depth of B2B rules as a larger programme, while treating Xero not only as the finance ledger but as the backbone for inventory truth.
- [House of Spells — Shopify rebuild: checkout, EPOS & inventory you can trust](https://codestern.co.uk/case-studies/house-of-spells): House of Spells sells licensed collectibles and fan merchandise to consumers online. Their previous custom store—built elsewhere—was unstable: frequent crashes, weak UI/UX, broken checkout, and inventory chaos. They needed a faster path to something dependable, so the programme moved to Shopify and rebuilt the storefront and operations from the ground up.
- [British Souvenirs — New Shopify store: gifts, souvenirs & seasonal campaigns](https://codestern.co.uk/case-studies/british-souvenirs): British Souvenirs trades gifts and souvenirs for UK and visitor audiences—often across more than one house brand. There was no dependable owned store to match that ambition; Codestern delivered a new consumer Shopify site from the ground up: structure, content, creative, payments, and the back-office habits the team needs to run peak weeks and seasonal pushes.
- [Cinereplicas UK — Design-led Shopify build — UK storefront](https://codestern.co.uk/case-studies/cinereplicas-uk): Cinereplicas UK needed a new consumer-facing store—not a rescue of a broken legacy stack—but a clean implementation of a premium entertainment-merchandise experience they had already designed. Shopify was the platform; the work centred on fidelity to that creative, stable checkout, and a flexible catalogue structure for drops and highlights without making public claims about underlying intellectual property.
- [Choize — New Shopify lifestyle store — brand to checkout](https://codestern.co.uk/case-studies/choize): Choize sells lifestyle products direct to consumers and needed a net-new digital flagship rather than unpicking someone else’s failed build. Codestern stood up a full Shopify B2C store—brand-forward UX, catalogue structure, payments, and the merchandising patterns needed for promos and range growth—aligned with how the business wants to present itself online.
- [Werwing — WordPress site for study-abroad consultancy — requirements-led build](https://codestern.co.uk/case-studies/werwing): Werwing connects students and families with international study opportunities. Their needs for the website were explicit from the outset—messaging, structure, journeys, and conversion points were specified before build. Codestern translated that into a full WordPress corporate site: all pages and blocks the brief called for, editor-friendly patterns, and forms tuned for enquiries across regions and devices.
- [Airotreat — WordPress corporate site — industrial air quality](https://codestern.co.uk/case-studies/airotreat): Airotreat serves industrial buyers around air quality monitoring, treatment, and related services. The project was led by explicit requirements and design intent—not experimentation mid-flight. Codestern built a complete WordPress corporate site that maps those ideas into production: sector- and service-oriented pages, specialist enquiry routes, and room to expand case-style content over time, without overstating outcomes or obligations to third parties.

## Company

- [Home](https://codestern.co.uk/): Agency overview, stats, and client logos
- [About](https://codestern.co.uk/about): Values, team, and why choose Codestern
- [Contact](https://codestern.co.uk/contact): Project enquiries and technical audit requests
- [Careers](https://codestern.co.uk/careers): Open roles at Codestern

## Agent resources

- [Agent JSON API](https://codestern.co.uk/api/agent): Structured organisation, services, FAQs, and keywords
- [Full agent context](https://codestern.co.uk/llms-full.txt): Expanded markdown for deeper ingestion
- [Sitemap](https://codestern.co.uk/sitemap.xml): All indexable pages

## Optional

- [Blog](https://codestern.co.uk/blog): Articles on performance, design, accessibility, and e-commerce
- [Building performant web applications](https://codestern.co.uk/blog/building-performant-web-applications): Why performance matters for users and business. Practical tips for faster load times, Core Web Vitals, and modern frameworks.
- [Web design trends that convert](https://codestern.co.uk/blog/web-design-trends-that-convert): Explore design patterns that drive engagement and conversion. From minimal layouts to strategic CTAs.
- [Why accessibility matters for your business](https://codestern.co.uk/blog/why-accessibility-matters-for-your-business): Accessibility isn't just compliance — it expands your audience and improves SEO. Learn how to build inclusive web experiences.
- [Choosing the right CMS for your website](https://codestern.co.uk/blog/choosing-the-right-cms-for-your-website): Headless, traditional, or custom? A practical guide to selecting a content management system that fits your needs.
- [Why mobile-first design matters](https://codestern.co.uk/blog/why-mobile-first-design-matters): Most users browse on mobile. Learn why designing for small screens first leads to better experiences for everyone.
- [E-commerce best practices for small business](https://codestern.co.uk/blog/e-commerce-best-practices-for-small-business): Selling online doesn't require a huge budget. Key practices for checkout, trust, and conversion on small business stores.
- [Content strategy for small business websites](https://codestern.co.uk/blog/content-strategy-for-small-business-websites): What to publish, how often, and when to outsource. A practical approach to content that supports your business goals.
- [Privacy policy](https://codestern.co.uk/privacy)
- [Terms of service](https://codestern.co.uk/terms)
- [Cookie policy](https://codestern.co.uk/cookies)