Description
Anti-Cache Kit is a development tool for WordPress developers and designers who need to bypass all caching and optimization mechanisms during development, testing, or troubleshooting.
Development tool only. Do not leave active on production sites.
Key features
Cache and optimization management
- Automatically detects and flushes 16+ cache plugins
- Deactivates optimization plugins that interfere with debugging (Perfmatters, FlyingPress, WP Asset CleanUp, and more)
- Clears object cache (Redis, Memcached) and OPcache
- Clears hosting-specific caches (SiteGround, Cloudflare, Kinsta)
- Prevents browser caching for administrators
Server-level cache prevention
- Automatic backup of .htaccess before any modification
- Injects .htaccess rules to disable SiteGround cache via environment variables
- Sets no-cache, no-store headers at server level for all visitors
- Disables ETags and mod_expires to prevent conditional caching
- Sends CDN/proxy bypass headers (X-Accel-Expires, Surrogate-Control)
- Automatically restores original .htaccess on plugin deactivation
Debug mode activation
- Automatic backup of wp-config.php before any modification
- Enables WP_DEBUG, WP_DEBUG_LOG, WP_DEBUG_DISPLAY
- Disables WordPress cache (WP_CACHE = false)
- Safely modifies wp-config.php using WordPress Filesystem API
- Automatically restores original wp-config.php on plugin deactivation
Maintenance mode
- Optional status page for non-logged visitors
- Quick toggle from admin bar
- Customizable via filter hook
- Self-contained output with aggressive cache prevention headers (503, no-store, Surrogate-Control)
Supported cache plugins
- WP Rocket
- W3 Total Cache
- WP Super Cache
- WP Fastest Cache
- LiteSpeed Cache
- SiteGround Optimizer
- WP Optimize
- Hummingbird (WPMU DEV)
- Breeze (Cloudways)
- Autoptimize
- Cache Enabler
- Surge
- Redis Object Cache
- Powered Cache
- Comet Cache
- Swift Performance
Supported optimization plugins
- Perfmatters
- FlyingPress
- WP Asset CleanUp
- Object Cache 4 Everyone
- Zero Config Performance (WPO Tweaks)
- Clearfy
Supported hosting caches
- SiteGround (via .htaccess environment variables and plugin API)
- Cloudflare (both new and legacy namespaces)
- Kinsta
- Generic hosting cache systems
Developer Information
Hooks and Filters
ayudawp_anticache_maintenance_data– Filter to customize maintenance page data (heading, status, message, retry)ayudawp_anticache_cache_plugins– Filter to modify the list of supported cache and optimization plugins
Constants
AYUDAWP_ANTICACHE_VERSION– Plugin versionAYUDAWP_ANTICACHE_PLUGIN_DIR– Plugin directory pathAYUDAWP_ANTICACHE_PLUGIN_URL– Plugin directory URLAYUDAWP_ANTICACHE_PLUGIN_BASENAME– Plugin basename for hooks
Code examples
Customize maintenance page:
add_filter( 'ayudawp_anticache_maintenance_data', function( $data ) {
$data['heading'] = 'My Site Name';
$data['status'] = 'Updating...';
$data['message'] = 'We are deploying a new version. Back in a few minutes.';
return $data;
} );
Add a custom cache plugin:
add_filter( 'ayudawp_anticache_cache_plugins', function( $plugins ) {
$plugins['my-cache/my-cache.php'] = array(
'name' => 'My Cache Plugin',
'type' => 'cache',
);
return $plugins;
} );<h3>Support</h3>
Need help or have suggestions?
Love the plugin? Please leave us a 5-star review and help spread the word!
About AyudaWP
We are specialists in WordPress security, SEO, and performance optimization plugins. We create tools that solve real problems for WordPress site owners while maintaining the highest coding standards and accessibility requirements.
Screenshots
Installation
- Upload the plugin files to
/wp-content/plugins/anticache/directory - Activate the plugin through the ‘Plugins’ menu in WordPress
- The plugin will automatically flush caches, enable debug mode, and inject .htaccess rules
- Visit Tools > Anti-Cache Kit to manage options
- Important: Deactivate when finished developing
FAQ
-
Is this safe to use on a live website?
-
Yes, with caveats. PHP-level anti-cache measures only affect administrators. However, the .htaccess rules affect all visitors to ensure complete cache bypass. Use maintenance mode to show a status page to visitors during development. Always deactivate when finished.
-
Why does it deactivate optimization plugins?
-
Optimization plugins like Perfmatters, FlyingPress, and WP Asset CleanUp modify how CSS, JS, and other assets are loaded. During debugging, you need to see the unmodified output to identify issues. These plugins are temporarily deactivated. Reactivate them manually from the Plugins page when you are done.
-
What happens to my wp-config.php and .htaccess?
-
Both files are automatically backed up before modification. When you deactivate the plugin, originals are restored.
-
Why does maintenance mode not show in incognito?
-
Version 4.0 injects .htaccess rules that disable server-level caching and sends aggressive cache-busting headers (including CDN and proxy bypass headers) to ensure the maintenance page is always served correctly.
-
Can I customize the maintenance page?
-
Yes. Use the
ayudawp_anticache_maintenance_datafilter to customize heading, status text, message, and retry text. -
Can I add support for custom cache plugins?
-
Yes. Use the
ayudawp_anticache_cache_pluginsfilter to add entries to the plugin list.
Reviews
Contributors & Developers
“Anti-Cache Kit” is open source software. The following people have contributed to this plugin.
Contributors“Anti-Cache Kit” has been translated into 2 locales. Thank you to the translators for their contributions.
Translate “Anti-Cache Kit” into your language.
Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
4.0.1
Tested up to WordPress 7.0
4.0.0
- Renamed from “Anti-Cache Emergency Kit” to “Anti-Cache Kit”
- Complete UI redesign with dark card theme on WordPress default background
- Added optimization plugin deactivation (Perfmatters, FlyingPress, WP Asset CleanUp, Object Cache 4 Everyone, WPO Tweaks, Clearfy)
- Added server-level .htaccess anti-cache rules (SiteGround env vars, browser cache headers, ETags, mod_expires)
- Added automatic .htaccess backup and restoration on deactivation
- Added early cache-busting headers at plugins_loaded for hosting-level bypass
- Added CDN/proxy bypass headers (X-Accel-Expires, Surrogate-Control, Vary)
- Detailed, AJAX-dismissible activation notice showing all changes made
- Unified admin bar indicator with maintenance toggle and settings dropdown
- All CSS and JS moved to external files in /assets/ directory
- Removed all emoji from code and translation strings
- Self-contained maintenance page with site name as heading and aggressive cache prevention
- Added support for Powered Cache, Comet Cache, and Swift Performance
- Added Kinsta hosting cache clearing
- Implemented ayudawp_anticache_cache_plugins filter
- Added AyudaWP promotional banner with plugin recommendations
- Fixed maintenance page not visible in incognito
- Fixed admin notice persistence
- Improved responsive layout for all screen sizes
3.0.5
- Updated Cloudflare integration to use new namespace (Cloudflare for WordPress v4.14.0+)
- Maintained backwards compatibility with legacy namespace
3.0.3
- Added automatic backup of wp-config.php before modifications
- Added WP_CACHE = false to disable WordPress cache
3.0
- Added comprehensive admin management panel
- Added optional maintenance mode for non-logged users
- Added support for more cache plugins
- Added object cache clearing
1.0
- Initial release





