Anti-Cache Kit vs Query Monitor

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; } ); Support 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 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.

Query Monitor is the developer tools panel for WordPress and WooCommerce. It enables debugging of database queries, PHP errors, hooks and actions, block editor blocks, enqueued scripts and stylesheets, HTTP API calls, and more. It includes some advanced features such as debugging of Ajax calls, REST API calls, user capability checks, and full support for block themes and full site editing. It includes the ability to narrow down much of its output by plugin or theme, allowing you to quickly determine poorly performing plugins, themes, or functions. Query Monitor focuses heavily on presenting its information in a useful manner, for example by showing aggregate database queries grouped by the plugins, themes, or functions that are responsible for them. It adds an admin toolbar menu showing an overview of the current page, with complete debugging information shown in panels once you select a menu item. Query Monitor supports versions of WordPress up to three years old, and PHP version 7.4 or higher. For complete information, please see the Query Monitor website. Here’s an overview of what’s shown for each page load: Database queries, including notifications for slow, duplicate, or erroneous queries. Allows filtering by query type (SELECT, UPDATE, DELETE, etc), responsible component (plugin, theme, WordPress core), and calling function, and provides separate aggregate views for each. The template filename, the complete template hierarchy, and names of all template parts that were loaded or not loaded (for block themes and classic themes). PHP errors presented nicely along with their responsible component and call stack, and a visible warning in the admin toolbar. Usage of “Doing it Wrong” or “Deprecated” functionality in the code on your site. Blocks and associated properties within post content and within full site editing (FSE). Matched rewrite rules, associated query strings, and query vars. Enqueued scripts and stylesheets, along with their dependencies, dependents, and alerts for broken dependencies. Language settings and loaded translation files (MO files and JSON files) for each text domain. HTTP API requests, with response code, responsible component, and time taken, with alerts for failed or erroneous requests. User capability checks, along with the result and any parameters passed to the capability check. Environment information, including detailed information about PHP, the database, WordPress, and the web server. The values of all WordPress conditional functions such as is_single(), is_home(), etc. Transients that were updated. Usage of switch_to_blog() and restore_current_blog() on Multisite installations. In addition: Whenever a redirect occurs, Query Monitor adds an HTTP header containing the call stack, so you can use your favourite HTTP inspector or browser developer tools to trace what triggered the redirect. The response from any jQuery-initiated Ajax request on the page will contain various debugging information in its headers. PHP errors also get output to the browser’s developer console. The response from an authenticated WordPress REST API request will contain an overview of performance information and PHP errors in its headers, as long as the authenticated user has permission to view Query Monitor’s output. An an enveloped REST API request will include even more debugging information in the qm property of the response. By default, Query Monitor’s output is only shown to Administrators on single-site installations, and Super Admins on Multisite installations. In addition to this, you can set an authentication cookie which allows you to view Query Monitor output when you’re not logged in (or if you’re logged in as a non-Administrator). See the Settings panel for details. Browser extension Query Monitor is also available as an optional browser dev tools extension. This is an alternative to using the in-page panel that gets output into the admin toolbar. Using the browser extension has some advantages over the in-page panel: The Query Monitor panel doesn’t take up space within the page you are inspecting The panel can be resized, undocked, and moved around like any other developer tools panel Information about the Query Monitor browser extension can be found here. Other Plugins I maintain several other plugins for developers. Check them out: User Switching provides instant switching between user accounts in WordPress. WP Crontrol lets you view and control what’s happening in the WP-Cron system Thanks The time that I spend maintaining this plugin and others is in part sponsored by: Automattic ServMask WP Staging All my kind sponsors on GitHub Privacy Statement Query Monitor is private by default and always will be. It does not persistently store any of the data that it collects. It does not send data to any third party, nor does it include any third party resources. Query Monitor’s full privacy statement can be found here. Accessibility Statement Query Monitor aims to be fully accessible to all of its users. Query Monitor’s full accessibility statement can be found here.