Ergonet Cache is a free WordPress plugin designed to optimize website performance by automating Varnish cache purging. This plugin is specifically tailored for users on Ergonet hosting services and leverages a reverse proxy system that can boost site speed by 30% to 60%. The Varnish HTTP accelerator stores entire pages in RAM for quick retrieval, significantly improving load times for returning visitors. The plugin requires minimal setup and works seamlessly with existing caching solutions, although it is recommended to disable page caching options in other plugins for optimal performance.

The plugin automatically caches resources upon user visits and updates the cache whenever content is modified, ensuring that visitors always receive the latest content without manual intervention. Specific resources are excluded from caching to maintain functionality, such as logged-in users' pages and backend calls. Users can verify Varnish cache operation through specific response headers, and additional configurations are available through the Ergonet WebPanel, allowing for tailored cache management.