There are basically four With the following actions that interact with the caches every user users can execute:

1. Refresh Page - refreshes this page only
2. Refresh Page Tree - refreshes this page and all descendant pages
3. Flush Page Transclusions - kicks the fragments of all referenced pages from the cache (since version 1.9.0)
4. Refresh Doctype Cache - refreshes the document type information derived from the page blueprints
5. Clear Fragments Cache - clears fragments of pages used for transclusion (since version 1.9.0)

These actions access the following caches:

1. projectdoc Document Cache - caches document representations for fast access
2. projectdoc Doctype Cache - caches doctype information found in templates
3. projectdoc Fragments Cache - caches fragments for special use cases that take heavily advantage from transclusion (deactivated by default)

There is an additional cache for mapping document type help texts called projectdoc Documentation Cache.

The document cache is called projectdoc Document Cache, the doctype cache projectdoc Doctype Cache. As administrator you can control these the document, doctype and documentation caches via Cache Management in your Confluence Admin. The fragments cache is stored in the database. There is no additional cache layer.

Here is the screenshot for these actions: