Custom Next.js Web Application: ProxiesThatWork
Premier Solutions engineered a high-performance React.js and Next.js web app for ProxiesThatWork, mastering complex API data fetching to deliver a fast, conversion-optimized proxy platform.
- Client
- ProxiesThatWork
- Scope
- Next.js Web Development Portfolio
- Case study published
Project preview
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What changed for this project
These results come from this project record. They describe this project and do not guarantee the same outcome for another website.
Page Load Speed
87% Faster0.8s
From 6+ seconds to under 1 second with SSR and edge caching.
Checkout Completion
3.1x Checkouts+210%
Streamlined single-step Stripe checkout tripled successful transactions.
Monthly Revenue
+185%+185%
Faster filtering, better UX, and reliable checkout directly increased monthly sales.
The client’s challenge
ProxiesThatWork's legacy PHP storefront suffered from 6-second page loads, frequent checkout failures during traffic spikes, and a product filtering system so slow that customers abandoned before finding the right proxy package.
The approach and implementation
We rebuilt the entire platform on Next.js with server-side rendering for SEO, client-side product filtering with sub-100ms response times, Redis-cached pricing data, and a streamlined Stripe checkout flow that handles concurrent transactions without degradation.
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?
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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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