Skills & tools
Our tech stack
The languages, frameworks, platforms and tools we build, automate and market with, full-stack and in-house. Each one below has a plain-English guide to what it is, how we use it for clients, and how it fits the rest of the stack.
Want to learn how we work with this stack, not just what it is? HDC Academy is in development.
Frontend framework
Astro The web framework we build fast, SEO-first client sites on. 
React The library we use for interactive islands and app-like builds. 
Next.js The React framework we reach for on genuinely app-like builds. 
Vue An approachable component framework we use where it fits the stack. 
Nuxt The Vue meta-framework we use for full Vue sites and apps. Styling & tooling
Languages
TypeScript The quality control we build into your site's code so small mistakes never reach your customers. 
JavaScript The language of the web behind every interactive feature we build. 
C# Microsoft's powerful, type-safe language, the backbone of our .NET work. 
PHP The language behind WordPress and much of the web we maintain. Backend & data
Node.js The proven engine that runs the machinery behind your website, quietly and reliably. 
.NET Microsoft's robust framework for enterprise-grade backends and systems. 
MySQL The proven open-source database behind WordPress and countless apps. 
PostgreSQL Our go-to powerful open-source database for serious data. 
SQL Server Microsoft's enterprise database we work with for .NET and existing systems. 
Supabase The open-source backend we use to ship app features fast. 
Stripe Secure, reliable payments built into your own site, not a third-party checkout. 
Cloud & DevOps
Cloudflare The hosting and security layer under every site we build. 
AWS The broad cloud platform we reach for when a project needs heavier infrastructure. 
Azure Microsoft's cloud, where we host and scale enterprise-grade applications. 
Hostinger Affordable, reliable web hosting, a practical home for the right kind of project. 
Azure DevOps The professional release process behind larger, business-critical software. 
Docker The reason your app works the same on day one and on day five hundred. 
Git Why a mistake on your site is a five-second fix, not a phone call you dread. 
GitHub Where we host code, review changes and auto-deploy on push. Security
Automation & marketing
Airtable The flexible database that stores and organises every lead we capture. 
Zapier No-code automation that routes leads the instant they arrive. 
Make The visual platform we use for multi-step automations Zapier can't handle. 
HubSpot A full CRM and marketing platform for businesses that need one home for leads and customers. 
Brevo The email and SMS platform we use for campaigns, flows and transactional mail. 
Mailchimp The well-known email platform we use for newsletters, automations and segmentation. 
Tawk.to Free live chat that turns website visitors into conversations, in real time. 
WhatsApp Business Let customers reach you the way they already message everyone else. 
Google Ads How we put trades in front of high-intent local searchers, tracked to booked work. 
Meta Ads Facebook and Instagram advertising that puts you in front of ready buyers. 
Microsoft Ads Search ads on Bing and beyond, often at a lower cost per click than Google. SEO & analytics
Google Tag Manager One control panel for every tracking tag, deployed cleanly, without touching code. 
Google Analytics The measurement layer that tells us what actually converts. 
Google Search Console Google's own window into how your site performs in search, straight from the source. 
Bing Webmaster Tools Microsoft's free view of how your site performs in Bing search, the SEO half people forget. 
SEMrush The research engine behind our SEO: keywords, competitors and rankings in one place. 
Ahrefs Deep SEO and backlink intelligence, a second lens on keywords and competitors. AI
Design
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