Description
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, a homepage speed test, a plain-English page cache checker 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.
- 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.
- Conservative HTML minification.
- Disable WordPress emoji files option.
- Browser cache helper.
- Gzip and Brotli detection.
- Setup tab with one-click WP_CACHE handling where wp-config.php is writable.
- Simple homepage speed test for cache-off and cache-on comparison.
- Plain-English page cache checker to explain why a page is cached or bypassed.
- 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.
Screenshots
Main Holo-Cache dashboard showing cache status, delivery method, cache size, action buttons and homepage speed test results.
Installation
- Upload the plugin folder to /wp-content/plugins/ or install it from the WordPress plugin screen.
- Activate Holographic Extreme Cache.
- Open Holo-Cache in the admin menu.
- Use the Setup tab to check WP_CACHE, cache delivery and helper options.
- Enable caching from the Dashboard or Cache tab.
- Use the page checker or homepage speed test to confirm the cache is working.
FAQ
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Does this cache logged-in users?
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No. Logged-in users are bypassed by default.
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Does this support WooCommerce?
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The plugin includes safe WooCommerce exclusions for cart, checkout, account and session URLs/cookies.
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Does it edit wp-config.php automatically?
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Only after an administrator clicks the Setup tab button to enable WP_CACHE. It does not silently edit wp-config.php on activation.
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Does it cache admin pages?
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No. WordPress admin pages, login pages, AJAX requests and REST API requests are excluded.
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What should I do after changing a theme, plugin or important content?
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Use Clear Cache from the Holo-Cache dashboard or admin bar. The plugin also clears relevant cache automatically for common content changes.
Reviews
There are no reviews for this plugin.
Contributors & Developers
“Holographic Extreme Cache” is open source software. The following people have contributed to this plugin.
Contributors
Translate “Holographic Extreme Cache” into your language.
Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
1.0.7
- Added the Go Faster tab with Pro feature highlights and introductory offer pricing.
1.0.6
- Improved homepage speed test sequencing so cache-off, warm-up and cache-on measurements use the same clearer comparison flow.
- Added short pauses between speed test stages to allow cache configuration and files to update.
- Improved preload startup so the first batch begins immediately, helping sites where WP-Cron is slow or disabled.
1.0.5
- Fixed final Plugin Check findings for cached HTML output and admin request handling.
- Improved scanner-readable nonce validation for admin tab/message and settings requests.
1.0.4
- Final security and maintenance pass.
- Improved admin request handling and sanitisation.
- Improved cache directory cleanup safety.
- Improved generated drop-in configuration writing.
1.0.3
- Fixed cache status detection for sites still using an older generated drop-in after updating.
- Improved cleanup of Holographic Extreme Cache browser cache and rewrite markers during uninstall.
- Hardened marker removal so browser cache marker text is not left in .htaccess.
1.0.1
- Improved site file path handling for .htaccess and setup tools.
- Improved output buffer closing for the page cache writer.
1.0.0
- Initial public release.
- Added static HTML page caching.
- Added PHP fallback delivery and advanced-cache.php drop-in support.
- Added smart cache clearing for common WordPress content changes.
- Added WooCommerce-safe cache exclusions.
- Added admin dashboard, setup tools and health checks.
- Added basic preload for the homepage, recent posts and recent pages.
- Added homepage speed test and page cache checker.
- Added conservative HTML minification, WordPress emoji disabling and browser cache helper options.