How We Reduced Global Web Page Latency by 65% Using Edge Middlewares
Published By
Sophia Vance
Lead Frontend Engineer
Distributed databases have made scaling applications easier, but the laws of physics still dictate that a request traveling from Europe to an origin database in the US will encounter high round-trip times (RTT). To build truly fast apps, we must move our server logic closer to the user.
By utilizing Cloudflare Workers and Vercel Edge Functions, we shifted authentication checks and site feature flags directly to the regional edge closest to the visitor. Requests are intercepted, validated against lightweight Redis databases, and routed instantly.
This approach reduced our average global Time to First Byte (TTFB) from 280ms to just 45ms. In this article, we outline our exact middleware configurations, connection pooling optimizations, and the cache invalidation policies that made this horizontal scaling possible.
"Scaling engineering systems is not about adding more servers, but aligning localized middleware computing meshes with intelligent client caching strategies."
— Martec Engineering Philosophy
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