webbcache

Webbcache is a caching layer in web development that stores copies of web resources and HTTP responses to improve performance and resilience. It can operate at various points in the delivery path, including client-side in a browser, server-side within an application, or as part of a reverse proxy or content delivery network.

Client-side webbcache typically relies on service workers, the Cache API, and IndexedDB to persist assets such as HTML, CSS, JavaScript, and images across sessions. Server-side implementations store cached responses in memory, on disk, or in distributed caches, and may be integrated with CDNs to extend reach.

Key concepts include cache keys derived from request URLs and relevant headers, time-to-live (TTL) values, and invalidation rules that respond to content changes. Caching strategies commonly supported include cache-first, network-first, and stale-while-revalidate, enabling immediate responses while background validation occurs using ETag or Last-Modified validators.

Benefits include reduced latency, lower origin server load, and improved availability during outages. Drawbacks include potential data staleness, cache coherency challenges, and added complexity in cache invalidation and security considerations, such as cache partitioning for sensitive data.

Webbcache is not a formal standard; the term describes a family of techniques aligned with general HTTP caching practices. It is commonly used in modern web stacks alongside service workers, CDNs, and application frameworks across JavaScript, Python, and other languages.