Anti-Cache Kit

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, flushes, and deactivates 20+ cache plugins
• Removes cache drop-ins (object-cache.php) so caches that keep working through a drop-in actually stop
• Deactivates optimization plugins that interfere with debugging (Perfmatters, FlyingPress, WP Asset CleanUp, and more)
• Never deactivates Query Monitor, the debugging tool you need while troubleshooting
• Clears object cache (Redis, Memcached) and OPcache
• Clears hosting-specific caches (SiteGround, Cloudflare, Kinsta, and Varnish on demand)
• Prevents browser caching for administrators

Server-level cache prevention

• Injects .htaccess rules via the WordPress markers API, no backup file needed
• Disables 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)
• Detects nginx and Caddy and skips rules that would not apply there, offering an equivalent nginx snippet to copy instead
• Cleanly removes only its own rules on deactivation, leaving the rest of .htaccess untouched

Debug mode activation

• Enables WP_DEBUG, WP_DEBUG_LOG, and SCRIPT_DEBUG (errors go to wp-content/debug.log)
• Sets WP_DEBUG_DISPLAY to false so errors are logged, not shown on screen
• Disables WordPress cache (WP_CACHE = false)
• Comments out conflicting definitions with visible markers instead of deleting them
• Wraps its own definitions in markers and reverts them on deactivation, preserving any WP_DEBUG, WP_CACHE or SCRIPT_DEBUG you had set yourself
• Modifies wp-config.php with the WordPress Filesystem API, validates the result before writing, and never keeps a copy of your credentials on disk

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)

Safety and environment

• Detects production sites with wp_get_environment_type() and shows a dismissible warning, plus a red dot in the admin bar
• Status panel reflects the real state: debug constants, server rules, detected environment, and whether wp-config.php is writable
• Removes its options and any leftover backup directory from older versions on uninstall

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
• Nginx Helper
• NitroPack
• SpinupWP
• Docket Cache
• Object Cache Pro

Supported optimization plugins

• Perfmatters
• FlyingPress
• WP Asset CleanUp
• Object Cache 4 Everyone
• DietPress (WPO Tweaks)
• Clearfy Cache
• EWWW Image Optimizer
• ShortPixel Image Optimizer

Supported hosting caches

• SiteGround (via .htaccess environment variables and plugin API)
• Cloudflare (both new and legacy namespaces)
• Kinsta
• Varnish (opt-in, best-effort PURGE/BAN when detected)
• 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
• ayudawp_anticache_purge_varnish – Filter to force the opt-in Varnish purge on or off (return true or false)

Constants

• AYUDAWP_ANTICACHE_VERSION – Plugin version
• AYUDAWP_ANTICACHE_PLUGIN_DIR – Plugin directory path
• AYUDAWP_ANTICACHE_PLUGIN_URL – Plugin directory URL
• AYUDAWP_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 private support or custom development?

Do you need one-on-one help, priority troubleshooting, or a custom feature, integration, or tweak built specifically for your site? I offer private support and custom development. Just contact me and tell me what you need.

Need help or have suggestions?

• Official website
• WordPress support forum
• YouTube channel
• Documentation and tutorials

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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.