This week in caching: scaling the Redis cache tier Three for when one Redis box stops being enough. — Sentinel for HA, Cluster for shards — Sentinel gives failover on a single dataset; Cluster splits …
This week in caching: the Vary header, friend and foe Three reads on the most quietly destructive response header. — Vary: User-Agent shreds your cache — thousands of UA strings means near-zero shared…
This week in caching: the cache layer in the browser you control Three on Service Worker caching — the most underused tier. — stale-while-revalidate as a strategy, in code — Workbox's StaleWhileRevali…
This week in caching: revalidation done right (304s) Three pieces on conditional requests — the half of caching people skip. — ETag vs Last-Modified — ETags are precise but break across load-balanced …
This week in caching: cache your failures too Three on negative caching — the cheap win nobody configures. — cache 404s briefly — a flood of requests to a missing URL otherwise hammers origin every ti…
This week in caching: WP page-cache plugins, sorted Four for WordPress folks choosing a stack. — W3 Total Cache for control, not comfort — granular object/page/db/fragment caching; powerful, easy to m…