A reverse caching proxy sits between users and your origin server to protect it from overload and accelerate content delivery.
The Cache-Control header uses directives like public, private, and max-age to define caching scope and duration for browsers and shared caches.
The s-maxage directive allows you to set a specific time-to-live (TTL) for shared caches, which overrides the general max-age directive.
Use ETag and Last-Modified headers to enable conditional requests, allowing servers to respond with a 304 Not Modified to save bandwidth and resources.
The stale-while-revalidate and stale-if-error directives allow caches to serve stale content while revalidating in the background or during origin failures.
Use directives like must-revalidate, no-cache, and no-store to enforce strict content freshness or prevent caching altogether for sensitive data.
The Vary header instructs caches to store different versions of a resource based on request headers like Accept-Language, enabling content negotiation.
Surrogate-Control and Surrogate-Capability headers provide granular control over multi-tier caches and enable advanced edge computing features.
Edge Side Includes (ESI) allow you to assemble web pages from different fragments at the cache layer, each with its own caching policy.
29:14Andreas Taranetz
44:37Natan Silnitsky
14:44Chris Heilmann
28:12Josip Stuhli
26:44Eileen Fürstenau
42:04Tamas Piros
35:53Rowdy Rabouw
36:58Simone Sanfratello
Jobs that call for the skills explored in this talk.
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