🎁 New User? Get 20% off your first purchase with code NEWUSER20 Register Now →
Menu

Categories

Web Development Intermediate

What is Web Caching Strategies?

Techniques for storing copies of web resources at various levels to reduce server load, bandwidth, and response times.

Web caching operates at multiple levels: browser cache (local storage of resources), CDN cache (edge server copies), reverse proxy cache (Nginx, Varnish), and application cache (Redis, Memcached). HTTP cache headers control behavior: Cache-Control (max-age, no-cache, no-store, public/private), ETag (content hash for conditional requests), Last-Modified (timestamp-based validation), and Vary (cache variations by header). Strategies include cache-first (serve cached version, update in background), network-first (try server, fall back to cache), and stale-while-revalidate (serve stale content while fetching fresh). Cache invalidation remains one of computing's hardest problems — techniques include versioned URLs, cache tags, and purge APIs.

Related Terms

Service Worker
A JavaScript file that runs in the background, enabling offline support, push notifications, and background sync for web apps.
MVC (Model-View-Controller)
An architectural pattern that separates an application into three components: data (Model), interface (View), and logic (Controller).
gRPC
A high-performance RPC framework using Protocol Buffers and HTTP/2 for efficient service-to-service communication.
Canonical URL
An HTML element that tells search engines which URL is the preferred version of a page when duplicate or similar content exists at multiple URLs.
Content Negotiation
An HTTP mechanism where client and server agree on the best representation of a resource based on format, language, or encoding preferences.
Middleware
Software that sits between the request and response in a web application, performing processing like authentication or logging.
 View All Web Development Terms →