Mastering Nginx Static‑Dynamic Separation for High‑Performance Web Architecture

Resource Division

Static assets such as images, CSS, JavaScript, and video are served directly by Nginx, while dynamic requests are proxied to backend application servers or clusters.

Architecture Overview

Typical request flow: Browser → CDN → Nginx → Backend.

CDN Layer

The CDN caches static resources, so they rarely reach the origin server. This reduces bandwidth costs and improves burst‑handling capacity by an order of magnitude.

Performance Tuning Beyond Simple Location Splits

In addition to location directives, enable OS‑level I/O optimizations and Nginx features to reduce data copying and network latency.

sendfile on;
 tcp_nopush on;
 tcp_nodelay on;

Activate gzip or brotli compression and configure appropriate cache headers (Cache‑Control, Expires, ETag, Last‑Modified) to further lower bandwidth usage.

Static Cache Configuration Example

location /static/ {
    root /data/static;
    expires 30d;
    access_log off;
}

Summary

Effective Nginx static‑dynamic separation requires a holistic approach: clear resource partitioning, CDN caching, OS‑level I/O settings, compression, and precise cache directives.