
Custom Next.js Web Application: ProxiesThatWork

Real Results & Performance KPIs
From 6+ seconds to under 1 second with SSR and edge caching.
Streamlined single-step Stripe checkout tripled successful transactions.
Faster filtering, better UX, and reliable checkout directly increased monthly sales.
Client Challenge Statement
Our Approach & Technical Implementation
The Challenge
ProxiesThatWork provides affordable, reliable HTTP/HTTPS proxies tested across thousands of major websites. With a brand built on 99.9% uptime and fast connectivity, their storefront needed to reflect that performance. The project had two demands: a clean, high-converting interface built from scratch, and an architecture that could handle complex API data fetching — live pricing tiers, user authentication states, and instant proxy deployment — without frontend lag.
The Solution
We built a custom web application from the ground up using React.js and Next.js, with a modern interface featuring light/dark mode and a conversion funnel that moves users from landing page to checkout.
To resolve the data-fetching bottlenecks, we used Next.js's Server-Side Rendering (SSR) and Static Site Generation (SSG) to fetch and cache critical API data from the backend and payment gateways before it reached the browser, cutting load times. We implemented state management in React.js so dynamic elements — IP authentication inputs and dashboard metrics — updated instantly and securely, and structured the framework around technical SEO best practices.
Results at a Glance
- Complex API data fetching handled with zero frontend lag
- Instant-setup experience the moment a customer purchases
- SSR/SSG caching for fast load times and strong Core Web Vitals
- Scalable architecture built to expand with their global proxy network
The Outcome
The result is a responsive, conversion-optimized web application that matches the speed and reliability of the ProxiesThatWork service. The platform handles dynamic data requests cleanly, and the React.js and Next.js infrastructure gives them a foundation that expands as their network grows.
Need a Fast, SEO-Ready Web Application?
We build custom React and Next.js applications engineered for performance and search visibility. Explore our React and Next.js development services or get a free project assessment.
Related services and insights
Continue exploring: Next.js versus WordPress and the single-page Next.js portfolio case study.
Results shown are specific to this engagement and are not forecasts. Outcomes vary with the starting condition, traffic, market, hosting, and ongoing changes.
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