CacheBoost Warmer

CacheBoost Warmer is an open-source plugin designed for WordPress and WooCommerce sites to automate cache warming after cache flush events. It addresses the issue of slow page loads and reduced SEO performance that can occur when caches are purged following actions such as publishing posts, updating themes or plugins, or changing WooCommerce product data. By automatically warming the cache, the tool helps maintain fast load times and consistent site performance, even after frequent updates or changes.

The plugin integrates directly with native WordPress events and popular caching plugins, including WP Rocket, W3 Total Cache, LiteSpeed Cache, and WP Super Cache. It detects a wide range of cache-clearing triggers, such as saving or deleting posts and pages, switching themes, updating navigation menus, running plugin or core updates, and WooCommerce product or stock changes. Upon detecting these events, CacheBoost Warmer sends a non-blocking API request to the CacheBoost service, which then warms the relevant pages across all configured regions. This process can be configured to target only the URLs that were purged or to re-warm the entire sitemap, with independent toggles for each mode.

For users seeking more control, CacheBoost also offers a REST API that can be called directly from custom scripts, deployment workflows, or third-party automation tools. The API accepts authenticated POST requests, supports passing URL lists, regions, and user-agents, and can be used alongside the plugin or as a standalone solution. The plugin is available in multiple languages, including English, French, German, Spanish, and Dutch.

CacheBoost Warmer is distributed under the MIT license and is open source. Users can obtain a free API key to get started, and pricing is based on the number of API requests, regardless of the integration method chosen.