--- title: Building Global Web Apps? Reduce Latency with Edge Computing description: Edge computing moves application logic from centralized cloud regions to hundreds of distributed Points of Presence (PoPs) near users, cutting global latency... canonical: https://daily.dev/posts/building-global-web-apps-reduce-latency-with-edge-computing-a1igzono2 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Building Global Web Apps? Reduce Latency with Edge Computing | daily.dev og:description: Edge computing moves application logic from centralized cloud regions to hundreds of distributed Points of Presence (PoPs) near users, cutting global latency... og:url: https://daily.dev/posts/building-global-web-apps-reduce-latency-with-edge-computing-a1igzono2 og:image: https://api.daily.dev/og/posts/A1IGzonO2.png og:image:alt: Building Global Web Apps? Reduce Latency with Edge Computing og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Building Global Web Apps? Reduce Latency with Edge Computing **[Syncfusion](https://daily.dev/sources/syncfusion)** · 8 min read · 0 upvotes · 0 comments ## Summary Edge computing moves application logic from centralized cloud regions to hundreds of distributed Points of Presence (PoPs) near users, cutting global latency from 400–800 ms down to 50–100 ms. The post covers how edge functions differ from CDNs and traditional serverless, provides real-world latency benchmarks across US/EU/APAC regions, and compares costs across Cloudflare Workers, Vercel Edge, AWS Lambda@Edge, and Deno Deploy. A practical Cloudflare Workers example demonstrates geo-based content delivery for e-commerce. Key limitations are addressed: stateless execution, storage costs, runtime constraints (128MB memory, restricted Node.js APIs), and JS/WASM-only language support. A decision framework helps developers choose between edge, CDN, and cloud for specific workloads. Edge is recommended for auth, personalization, geo-routing, and session management, but not for heavy compute, complex database queries, or strict data locality requirements. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Can edge functions connect directly to a PostgreSQL database? Most edge environments are not designed for long-lived database connections such as PostgreSQL over TCP. Edge applications typically work better with HTTP-based databases, edge-native storage like KV stores and Durable Objects, or API gateways and data proxies instead of direct TCP connections. _Developers weighing edge architecture trade-offs can find comparisons like this on daily.dev._ ### How much latency does edge computing actually save compared to traditional serverless for global users? Edge execution typically totals around 90-100 ms versus 400-650 ms or more for traditional single-region serverless. Gains are largest for users far from the origin server: APAC requests dropped from roughly 450 ms to 60-70 ms in one benchmark, while global P99 latency improved from about 1200 ms to 75-200 ms. _Engineers deciding between edge and serverless deployments track real-world benchmarks like these on daily.dev._ ### Do Node.js npm packages work inside edge functions like Cloudflare Workers? Pure JavaScript libraries generally work fine in edge runtimes, but Node.js-specific APIs such as net and fs are not supported since edge platforms use restricted, non-Node runtimes. This limits compatibility for packages that depend on filesystem access or raw network sockets. _Developers porting apps to edge runtimes check compatibility gotchas like this on daily.dev._ ## Similar posts on daily.dev - [Edge Functions vs Serverless 2026: The Honest Truth](https://daily.dev/posts/edge-functions-vs-serverless-2026-the-honest-truth-tjktppggt) · Alex CloudStar · 0 upvotes · 0 comments - [Optimizing JavaScript for the Edge Runtime](https://daily.dev/posts/optimizing-javascript-for-the-edge-runtime-kml5iehsg) · Telerik · 0 upvotes · 0 comments - [Modular Edge Computing at Multi-Tenant SaaS Scale on Cloudflare Workers](https://daily.dev/posts/modular-edge-computing-at-multi-tenant-saas-scale-on-cloudflare-workers-zgtnvgdda) · InfoQ · 0 upvotes · 0 comments - [Edge clouds and local data centers reshape IT](https://daily.dev/posts/edge-clouds-and-local-data-centers-reshape-it-wajhjtn2g) · InfoWorld · 0 upvotes · 0 comments --- Tags: [#webdev](https://daily.dev/tags/webdev), [#javascript](https://daily.dev/tags/javascript), [#serverless](https://daily.dev/tags/serverless), [#cloudflare](https://daily.dev/tags/cloudflare), [#edge-computing](https://daily.dev/tags/edge-computing) [View this post on daily.dev](https://daily.dev/posts/building-global-web-apps-reduce-latency-with-edge-computing-a1igzono2) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Building Global Web Apps? 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