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Flexa Cache
Flexa Cache

Flexa Cache

0/5 (0 ratings) — active installs Updated Aug 8, 2026
cacheoptimizationpage cacheperformancespeed
Download v1.0.3

Flexa Cache is a full-featured WordPress page-cache and front-end optimization plugin. It installs a self-contained advanced-cache.php drop-in that serves compressed static HTML files before WordPress even loads — the same technique used by WP Fastest Cache and W3 Total Cache — giving you maximum TTFB improvement on both Apache and nginx hosts.

Page Cache

  • Static HTML cache served by a pre-WordPress drop-in (no PHP/MySQL on cache hits)
  • Gzip pre-compressed .gz files served natively
  • Separate mobile cache variant (index-mobile.html) when Mobile Theme is enabled
  • Smart invalidation: purge on new post, updated post, comments, theme/menu/widget changes, and WooCommerce product/stock updates
  • Per-URL cache purge from the admin UI, WP-CLI, or REST API
  • Cache preloader via Action Scheduler (or WP-Cron fallback) with start/cancel/status controls
  • Widget output cache with O(1) versioned-key invalidation

Front-End Optimization

  • Minify HTML (whitespace collapse) and Minify HTML Plus (inline CSS/JS trim)
  • Minify CSS and Minify CSS Plus (deeper punctuation squeeze)
  • Combine CSS — adjacency-only buffer fusion preserving cascade order
  • Combine JS / Combine JS Plus — concatenate header and footer scripts
  • Gzip — mod_deflate .htaccess block for dynamic (non-cached) responses
  • Browser Caching — Expires/Cache-Control .htaccess block
  • Disable Emojis — remove WordPress emoji scripts, styles, and DNS prefetch
  • Lazy Load — native loading="lazy" + decoding="async" on images and iframes
  • Render Blocking JS — add defer to render-blocking scripts
  • Google Fonts Async — rewrite Google Fonts <link> to preload + onload swap with <noscript> fallback
  • Delay JS — neutralise non-critical external scripts until first user interaction or 7-second idle fallback

Developer-Friendly

  • WP-CLI: wp flexa-cache clear [--url=<url>], wp flexa-cache status, wp flexa-cache preload [start|status|cancel]
  • REST API: /flexa-cache/v1/cache/purge, /cache/stats, /cache/preload
  • Filterable hooks: flexa_cache/engine/is_cacheable, flexa_cache/engine/buffer, flexa_cache/store/dir, flexa_cache/purged, flexa_cache/settings/languages, and more
  • Kill switch: ?flexa_cache_optimize=0 disables optimization for a single admin request
  • Exclusion lists for URLs, cookies, user agents, CSS handles, and JS handles

Source code for compiled JavaScript and CSS

The plugin ships a compiled admin UI in assets/dist/. The human-readable
source (apps/admin/src) and the build tooling are publicly available at:

https://github.com/flexatech/flexa-cache

The admin UI is built with npm and Vite:

  1. npm install
  2. npm run build (or npm run dev for a watched dev build with HMR)