Ttl

Caching Strategies for High-Performance Web Apps Caching is a core tool to speed up web apps. It reduces latency, lowers server load, and improves resilience. A good strategy uses multiple layers: the browser, a content delivery network (CDN) at the edge, and the origin server. When each layer is configured well, users see fast pages even during traffic spikes. Browser caching and validation The browser can serve many resources directly if they are marked as cacheable. Use clear Cache-Control headers and a sensible max-age. Public is appropriate for static assets, while private can protect personal data. Include a validator like ETag or Last-Modified so the browser can check if content changed without downloading everything again. Small, immutable assets should be served with long TTLs to maximize reuse. ...