Frontend System Design
/Advanced
HTTP Caching
Definition
HTTP caching is governed by Cache-Control headers sent by the server. Directives like `max-age`, `no-cache`, and `immutable` explicitly tell the browser and intermediate CDNs exactly how long a resource is valid.
Explain Like I'm New
The server attaches an expiration date to files. 'This CSS file is good for 1 year. Do not ask me for it again until then.'
Interview Questions
basic
- How does HTTP Caching fundamentally work?
intermediate
- What are the performance implications of HTTP Caching?
advanced
- How does HTTP Caching scale in an enterprise architecture?
trick
- Are there scenarios where HTTP Caching is an anti-pattern?