W3TC Cache Insights

W3TC Cache Insights A lightweight dashboard for W3 Total Cache that answers a simple question: what is actually being cached right now? It's an inspection tool at heart, with one safe maintenance action (clearing leftover old files) and, since 0.3.0, an opt-in cache primer that keeps the origin page cache warm (off by default — a fresh install still only observes). It reuses W3TC's own measurement code rather than reinventing it, and is deliberately built to add zero overhead to normal page loads — everything is computed on demand from an admin screen and cached briefly. No W3TC Pro licence and no debug logging required. Works on the free version. What it shows - Cache modules — page, database, object and minify cache: whether each is on, which engine it uses (Disk, Redis, Memcached, APCu…), and for disk engines the on-disk size and entry count. - Cache directory — every sub-folder of wp-content/cache sized, including the housekeeping dirs the per-module view doesn't cover (tmp, log, config, fragment). Engine-agnostic; answers "what's actually in the cache folder". - Page cache explorer — because the disk (Enhanced) page cache mirrors your URL structure on disk, it's browsabl