At Kinsta we implement and manage full-page caching for all sites server-side. This means there is no need for typical caching plugins. If you have questions about this, please contact our Support team. The cache is set to expire every 1 hour by default, but you can adjust this to be longer if needed.
To change the cache expiration, log in to MyKinsta and navigate to Sites > sitename > Tools. Click the Modify button under Site cache, and select Change cache expiration. In the modal/pop-up that appears, select your desired cache expiration and click the Change expiration button. For sites that don’t often change, having a longer cache expiration can be beneficial for performance.
Kinsta WordPress Cache
The Kinsta MU plugin is installed by default on all Kinsta-hosted sites. This is not your typical caching plugin, as it works on a server level. It allows you to purge the full page cache, the object cache, or both right from the admin bar. You can also control automatic purge settings when posts and comments are published or updated.
If Edge Caching is enabled on your site, clearing your site’s full page cache in the Kinsta MU plugin also clears the Edge Cache.
For more details, please take a look at our detailed post on the topic: Kinsta Handles WordPress Caching So You Don’t Have To