CUSTOM WEBSITES BUILT FOR SPEED & CONVERSIONS
We build custom React and Next.js sites that load in under 1 second. No generic templates—just high-performing machines that convert visitors into paying clients.
DESIGN & PROTOTYPE
Every website starts with a clickable prototype. You see exactly what you'll get before a single line of code is written.
DEVELOPMENT & BUILD
Our developers hand-code your site with Next.js, optimising for speed, SEO, and conversion from day one.
LAUNCH & OPTIMISE
We deploy, test across all devices, monitor performance, and hand over with full documentation and support.
The True Cost of a Slow Website
Of mobile users abandon sites that take longer than 3 seconds to load
Fewer conversions for every 1-second delay in page load time
Average load time that triggers user frustration and bounce
Our guaranteed load time — fast enough to keep every visitor engaged
“MY WEBSITE IS SO SLOW, I'M LOSING CUSTOMERS.”
You've invested in your website, but when potential customers click through from Google or social media, they're met with frustrating loading times. The page hangs. Images load slowly. By the time everything appears, they've already hit the back button and moved on to a competitor. Every second of delay is costing you real revenue.
Google has confirmed that page speed is a ranking factor, and our data shows that sites loading in under 1 second see significantly higher conversion rates, lower bounce rates, and better search rankings than slower competitors. Our websites consistently achieve sub-second load times by leveraging Next.js server-side rendering, automatic image optimisation, code splitting, and lazy loading — techniques that eliminate the bloat that slows down typical websites.
“MY WEBSITE LOOKS TERRIBLE ON MOBILE DEVICES.”
Over 60% of web traffic now comes from mobile devices. But when someone visits your site on their phone, the text is too small to read, buttons are impossible to tap, images are cut off, and the layout is a jumbled mess. You're alienating the majority of your potential customers — and they're judging your business based on that broken experience.
We build every website mobile-first, meaning we design for the smallest screens first and progressively enhance for larger devices. This approach ensures an exceptional user experience on smartphones, tablets, and desktops alike. Our responsive design process includes thorough testing across dozens of device sizes to guarantee perfect rendering everywhere. Google's mobile-first indexing means your mobile experience directly impacts your search rankings.
Why Mobile Matters
60%+ of Traffic is Mobile
Over half your visitors will see your site on a phone first. If it doesn't work perfectly, they leave immediately.
Google Mobile-First Indexing
Google primarily uses the mobile version of your site for ranking and indexing. A poor mobile experience hurts SEO.
Mobile Users Convert Differently
Mobile visitors have different intent and behaviour patterns. Our sites are optimised for thumb-friendly navigation and fast mobile checkout.
Why Websites Fail to Convert
Poor Visual Hierarchy
Visitors don't know where to look first. Important elements blend into the background.
Unclear Value Proposition
Users can't understand what you offer within seconds — so they leave without engaging.
Complicated User Journey
Too many steps, confusing navigation, and friction points that prevent users from taking action.
“I GET TRAFFIC BUT NO ONE CONVERTS.”
You're getting visitors — maybe even a decent amount. But they're not filling out your contact form, not calling, and not buying. Your website looks fine, so what's going wrong? The issue isn't your traffic — it's your conversion architecture. Your site isn't designed to guide visitors toward taking action.
Our conversion-focused design methodology addresses this head-on. Every element on the page — from button colours and placement to form length and trust signals — is optimised to maximise conversions. We use strategic calls-to-action, social proof integration, streamlined user flows, and A/B test-ready architecture to ensure your website turns visitors into paying customers. Our clients typically see 2x or higher conversion rate improvements after a Nexablack rebuild.
“MY WEBSITE IS SLOW, UGLY, AND NOT BRINGING IN CUSTOMERS.”
You know the feeling. You send people to your website and cringe. It takes 5 seconds to load, looks like it was built in 2010, and doesn't even work properly on mobile.
The Cost of a Bad Website
Average load time of most small business sites
Of users have left a site because it was too slow
Lost revenue every day your site underperforms
NO TEMPLATES. NO WORDPRESS. JUST HIGH-PERFORMANCE CODE.
We don't use drag-and-drop builders or WordPress themes. Every website we build is hand-coded using Next.js and React—the same technology powering the world's fastest websites.
MORE THAN JUST A BEAUTIFUL WEBSITE
A great website is more than just visual appeal. It needs to load instantly, rank highly on Google, convert visitors into customers, and provide a seamless experience across every device. Our web development agency combines cutting-edge technology with proven conversion rate optimisation principles to deliver websites that perform as stunningly as they look.
Blazing Fast Performance
Every site we build achieves sub-second load times using Next.js, React server components, automatic image optimisation, code splitting, and lazy loading. Google rewards fast sites with higher rankings, and users reward them with better engagement. Our average Lighthouse performance score is 95+ across all projects.
- Sub-1 second load times guaranteed
- Perfect Lighthouse scores achieved
- Core Web Vitals optimised
- Automatic image WebP conversion
SEO-First Architecture
Your website is built with SEO at its foundation, not as an afterthought. Semantic HTML structure, proper heading hierarchy, automatic XML sitemaps, structured data markup, and optimised meta tags are built into every page. We ensure search engines can crawl, index, and understand your content from day one.
- Semantic HTML5 structure
- Automatic sitemap generation
- Built-in schema markup
- SEO-optimised URL structure
Conversion-Focused Design
Every design decision is guided by one question: does this increase conversions? From strategic button placement and colour psychology to streamlined form design and trust signals, every element serves a purpose. Our sites are designed not just to impress, but to drive measurable business results.
- Strategic CTA placement
- Trust signal integration
- Streamlined user journeys
- A/B test ready architecture
BUILT WITH INDUSTRY-LEADING TECHNOLOGIES
We don't use outdated platforms or restrictive website builders. Every website we create is built on modern, scalable technology that gives you complete control, exceptional performance, and room to grow. Our tech stack is chosen specifically to deliver the fastest, most secure, and most maintainable websites for small and medium businesses across the UK.
Next.js & React
The same framework used by TikTok, Netflix, and Airbnb. Provides server-side rendering, static site generation, and automatic performance optimisation for blazing fast page loads.
Tailwind CSS
Utility-first CSS framework that produces minimal, maintainable stylesheets. No unused CSS, no bloated frameworks, and complete design consistency across every page and component.
Headless CMS
Flexible content management that separates the backend from the frontend. Update your content easily while maintaining optimal performance and security. Options include Sanity, Strapi, and WordPress headless.
Vercel Hosting
Enterprise-grade hosting platform built specifically for Next.js. Automatic SSL, global CDN distribution, serverless functions, and instant rollbacks. 99.99% uptime guarantee included.
SMART TOOLS FOR SMARTER RESULTS
Our AI-powered tools are designed to solve the most common challenges in web development and design — faster, smarter, and more efficiently than ever before.
AI Website Builder
Describe your business and our AI generates a fully functional Next.js website with your branding, layout, and content — in minutes instead of weeks.
AI Design Inspector
Upload any website URL and our AI analyses its design, UX, performance, and SEO — giving you actionable recommendations to improve conversions.
AI Content Generator
Input your business details and our AI writes SEO-optimised copy for every page — headlines, meta descriptions, service descriptions, and CTAs.
WEB DEVELOPMENT FAQ
Absolutely. We start with a comprehensive discovery call where we learn about your business, your target audience, your competitors, and your goals. From there, we recommend the exact type of website, features, and functionality that will deliver the best results for your specific situation. Most of our clients don't have a technical background — that's why they hire us.
Our websites start from £399 for a single high-conversion landing page, £799 for a standard business website with up to 5 pages, and £1,499 for custom builds with advanced functionality. Every project is scoped individually based on your specific requirements. We provide a detailed, transparent quote before any work begins — no hidden fees, no surprises.
Yes — 100% of our websites are built mobile-first. We design and develop for the smallest screens first, then progressively enhance for tablets and desktops. This approach ensures an exceptional user experience on every device. Over 60% of web traffic comes from mobile devices, so mobile responsiveness is non-negotiable in our development process.
Yes, every website needs hosting. We offer hosting and maintenance packages starting from £XX/month that include automatic backups, security monitoring, performance optimisation, and priority support. We use Vercel and enterprise-grade hosting providers to ensure your site loads quickly and stays online. Alternatively, you can arrange your own hosting and we'll deploy to it.
We include 30 days of complimentary post-launch support covering bug fixes and minor adjustments related to the original scope. For ongoing content updates, feature additions, or design changes, we offer flexible maintenance retainers or one-off project pricing. Many of our clients choose our monthly maintenance package for peace of mind.
Timeline depends on the scope and complexity. A single landing page can be delivered in 3-5 business days. A standard business website typically takes 2-3 weeks. Larger custom projects with advanced functionality may take 4-8 weeks. We provide a detailed timeline in your project proposal and keep you updated throughout the process.
CHOOSE YOUR WEBSITE PACKAGE
Every package includes responsive design, speed optimisation, SEO foundation, and 30 days of free post-launch support. All websites are built with Next.js and hosted on enterprise-grade infrastructure.
Landing Page
- Single high-conversion landing page
- Mobile responsive design
- Contact form integration
- Speed-optimised build
- 30 days support
Business Website
- Up to 5 custom pages
- CMS for easy updates
- SEO-optimised structure
- Contact forms & integrations
- Mobile responsive design
- Speed & performance focus
Custom / E-commerce
- Unlimited custom pages
- Custom functionality & features
- E-commerce integration
- Advanced SEO & analytics
- 30 days support & training
- Priority turnaround
LAUNCH YOUR DIGITAL FLAGSHIP
Ready to build a website that drives real business results? Tell us about your project and our engineering leads will provide a free speed audit of your current site, a detailed project blueprint, and a transparent quote. No obligation, no pressure — just expert advice on how to take your online presence to the next level.