Holographic Extreme Cache

Holographic Extreme Cache is a simple, yet powerful, static page caching plugin with safe defaults.

It includes static HTML page caching, smart cache clearing, safe WooCommerce exclusions, debug response headers, a basic preload system, a cache health check, safe HTML minification, WordPress emoji disabling, browser cache helper rules, new-upload WebP conversion where supported, a homepage speed test, cache diagnostics and an uninstall cleanup option.

Caching is not enabled automatically on activation. Open Holo-Cache in the WordPress admin area and use the Setup tab or enable caching manually.

Features

• Static HTML page caching.
• PHP fallback cache delivery.
• advanced-cache.php drop-in support.
• Optional Apache rewrite helper rules.
• Manual clear cache button.
• Admin bar cache clearing.
• Automatic cache clearing when content changes.
• Basic smart purge for posts, pages, archives, taxonomy archives, authors and homepage.
• Cache lifetime control.
• Basic preload for homepage, recent posts and recent pages.
• Combined cache and preload controls for simpler setup.
• Safe default exclusions.
• WooCommerce cart, checkout and account exclusions.
• Logged-in user bypass by default.
• POST, AJAX, REST, preview and unsafe query string bypass.
• Cache size and cached page count.
• Last purge and last preload time.
• Basic cache health check.
• Other caching plugin conflict detection.
• Debug response headers.
• Strong cached HTML and inline CSS minification.
• Disable WordPress emoji files option.
• Browser cache helper.
• New-upload WebP conversion for JPEG and PNG images where the server supports it.
• Safe picture/source markup for generated WebP files, with original images kept as fallbacks.
• Clear server requirement messaging when WebP conversion is unavailable.
• Gzip and Brotli detection.
• Setup tab with one-click WP_CACHE handling where wp-config.php is writable.
• Setup checklist for the main cache, speed test, preload, health and optional image steps.
• Simple homepage speed test for cache-off and cache-on comparison with expandable diagnostics.
• Safe and Balanced modes.
• Optional uninstall cleanup.

Privacy

Holographic Extreme Cache does not collect analytics, does not track visitors and does not send site data to a third-party service.

The plugin stores cache files, configuration helper files and optional log files inside its own folder under the WordPress uploads directory. Logging is off by default.

Uninstall

The plugin can remove its settings, cache files, configuration files, log files and scheduled events on uninstall if the uninstall cleanup option is enabled before uninstalling.

If uninstall cleanup is not enabled, settings and generated files are left in place so the site owner can remove or inspect them manually.