Colourful lines of code on a computer screen

Web Development

Mean more through better experiences.

Build what matters, integrate what works.

Great development comes from better technical decisions, and more code is rarely the answer.

We build fast, secure and scalable websites and applications using proven open-source technologies, established platforms and leading integrations wherever possible.

Our approach is deliberately plug-and-play. If the right technology already exists, we integrate it, and where your business needs something different, we build it.

The result is less unnecessary complexity, faster development and digital platforms that are easier to manage, integrate and evolve, with less technical debt to hold you back.

Website shown on a laptop against a grey background

Choose the right technology.

We define the architecture around what the platform needs to achieve, including functionality, integrations, security, performance, scalability and the people who need to manage it.

Before development begins, we establish a clear functional and technical specification covering scope, requirements, configuration and risk, creating a shared blueprint for the build.

Modular, component-based development keeps platforms flexible, reduces unnecessary technical debt and makes future development easier, so the platform stays simple and scalable.

Close-up of JavaScript code on a blue screen

Open by default.

We believe clients should own their technology, not become dependent on it.

Open-source technologies give us the flexibility to create powerful digital experiences without locking clients into proprietary agency platforms, reducing ongoing digital debt and removing unnecessary points of dependency from the technology supply chain.

Our development heritage is built around open-source PHP and CMS technologies, giving us access to mature libraries of components, extensions and integrations, while keeping the freedom to develop custom functionality when it’s needed.

Brand guidelines pages with navy layouts and colourful data icons

If it already exists, don’t rebuild it.

There’s little value in recreating technology that already works well. We integrate leading platforms and services to add functionality faster and more efficiently, from CRM, marketing automation and eCommerce to payments, search, analytics, authentication and specialist applications.

A website rarely works alone. We use APIs to connect your site with the systems behind your business, creating smooth flows of content, customer data and functionality across CRM, marketing automation, eCommerce, customer portals and specialist platforms.

That means less duplication, fewer disconnected systems and more of the development budget invested in the parts of your digital experience that make you different.

Be found, understood and recommended.

Laptop showing Google search beside a cup of coffee

SEO, GEO & AI Visibility

Search is changing. Being visible now means optimising for both traditional search engines and the AI platforms people use to discover, compare and make decisions.

We combine technical SEO, content, authority and structured data to improve organic visibility while making websites easier for search engines, large language models (LLMs) and answer platforms to understand.

Using keyword and competitor intelligence, technical audits, content optimisation, schema, internal linking and authority building, we continually monitor how your brand is being discovered across traditional search and emerging AI environments.

We can’t promise citations in LLMs, but we can build the strongest possible foundations for earning them.

Explore Generative Engine Optimisation →

Fast, resilient and ready.

Browser address bar showing a secure https padlock

Hosting

Hosting is the foundation everything else relies on. Through our partners, we provide managed hosting environments configured around the requirements of the platform, balancing performance, availability, security and scalability.

SSL, backups, monitoring, caching and environment management keep the infrastructure behind your website ready for everyday traffic and unexpected demand, so it’s something you don’t have to think about.

Keep everything working.

Gigaclear website shown on a laptop on a wooden desk

Maintenance & Support

Websites evolve, browsers change and platforms update, so things need maintaining. Our in-house web team provides ongoing technical support to keep websites stable, compatible and current, managing CMS, plugins, integrations, dependencies and platform updates while resolving issues as they arise.

After launch, our delivery process also includes post-launch checks and CMS training, so internal teams can manage the platform confidently.

Protect the platform.

Website homepage about supporting skills and developing talent

Security

Website security needs constant attention. We harden platforms against common vulnerabilities, manage security updates and patches, monitor for emerging threats and maintain appropriate backup and recovery processes.

Security is considered throughout development and continues after launch through controlled updates, monitoring and maintenance. For major builds, our pre-launch process can also include penetration testing, delivered through our independent partners.

Faster works better.

CN Bio website shown on a laptop

Website Performance

Speed affects experience, conversion and search visibility. We continually monitor technical performance across devices and browsers, identifying opportunities to improve loading speed, responsiveness and overall site health.

Image and asset optimisation, caching, and code, database and infrastructure improvements keep websites lean as they grow.

Built for the people managing it.

Orange food website shown on a tablet on a sunlit wooden table

CMS & Platforms

We build structured content, reusable components and intuitive workflows that allow non-technical teams to confidently manage and evolve their sites.Whether it’s WordPress, Shopify, a specialist platform or a headless architecture, we select technology around the requirements of the project instead of forcing every client onto the same stack.

WordPress is often our starting point because it’s flexible, highly adaptable and integration-friendly, but we recommend the platform that best fits the brief.

Make the experience smarter.

Laptop screen showing the Introducing ChatGPT page

AI Integration

AI now needs to be considered in the infrastructure underneath a website, as well as in what users see.We also structure platforms, content and integrations so they’re ready to evolve as AI discovery and functionality develop.

We integrate AI and LLM capabilities where they solve real user or business problems, including intelligent search, recommendation, automation and conversational experiences.

Let people ask for what they need.

Cytel website shown on a laptop

Conversational Experiences

Sometimes the fastest user journey isn’t another menu. We create and integrate intelligent chatbots and conversational interfaces that help users find their way around complex websites, discover relevant content, understand products and services and move towards the next action.Good conversational UX gives users a faster route through the website journey, without replacing it.

For Cytel, we integrated an AI chatbot into a site containing more than 100 pages, giving customers and prospects a quicker route to the information they needed. The chatbot generated 1,350 AI sessions in its first six months, as part of a new site that saw a 464% increase in website users within three months.

Test as you build.

Sitemap planning board shown on a laptop

Quality Assurance

We build in controlled development and staging environments, so new functionality can be developed, reviewed and tested without putting the live platform at risk, and every release is approved before it goes live.Formal user acceptance testing (UAT) allows client teams to validate the finished platform against the agreed journeys, functionality and technical specification before launch.

Testing happens throughout the build, rather than at the end. We test functionality, responsive behaviour, integrations, content, performance and accessibility, combining automated tools with manual checks. Accessibility is designed in from the outset against WCAG 2.2 AA, including keyboard and screen-reader testing.

Go live without the drama.

TriNetX website shown on a laptop and two smartphones

Launch

Launch should be a brand event, not an emergency for your development teams.Once approved, the site moves from staging to live, followed by technical checks, monitoring and CMS training for your team.

We plan migration, redirects, DNS, integrations, analytics, tracking and SEO requirements in advance, protecting existing performance and reducing launch risk.

AgencyUK helped us reduce our digital debt, by developing lean open source solutions for our website and extranet services. The team were knowledgeable and pragmatic when working with our own busy internal IT teams.

Tom Curran CEO, Title Research

Frequently asked questions.

Which CMS should we use?

The right website CMS depends on what your website needs to do, who needs to manage it and how it connects with the rest of your technology.

For some organisations, WordPress provides the flexibility they need. For eCommerce, the decision might include WordPress vs Shopify or another specialist platform. More complex digital setups may benefit from a headless CMS, separating content management from the website experience.

We look at your content, integrations, security, scalability and internal capabilities before recommending a platform. The best CMS is the one that fits how your organisation actually works.

Do you provide hosting and ongoing support?

Yes. We can provide website hosting, website maintenance and ongoing website support after launch.

The level of support depends on your website and internal capabilities. It can include hosting, monitoring, security and maintenance, alongside ongoing development and improvements to performance and user experience.

We agree responsibilities and the appropriate support model as part of the project, so your team knows what we’ll manage and what remains with you.

Launching a website is one milestone. Keeping it secure, reliable and performing well is an ongoing responsibility, and we can stay with you for that.

Can our website connect to our CRM and other systems?

Yes. We develop websites that connect with CRMs, marketing platforms and other business systems using APIs and integrations.

That can include HubSpot integration, connecting website forms, customer data and marketing activity with your existing CRM, as well as integrations with other platforms your organisation relies on.

We consider these requirements during the technical planning stage rather than treating them as an afterthought. The objective is to create a website that works as part of your wider digital technology, reduces unnecessary manual processes and helps useful data move between the systems that need it.

How do you protect our search rankings when a new site launches?

Website migration SEO should be planned before a new website launches, rather than dealt with once rankings or traffic have already been lost.

We work with our SEO specialists throughout the redesign and development process to identify valuable existing content and URLs, plan redirects, preserve important on-page signals and make sure the new site can be crawled and indexed correctly.

We also monitor performance around launch so issues can be identified quickly. Good website redesign SEO protects what is already working while creating the technical and content foundations for stronger organic performance after launch.

Ready to mean more?
Let’s have a conversation.

Leave your details below and a member of the AgencyUK team will get back to you as soon as possible