NimbleCache Documentation

Change a post and the plugin purges that post, the front page, its categories and tags, its author archive, its date archives, the post-type archive and the feeds. Not the whole cache.

That distinction is the difference between a cache that stays warm and one that never does. A site that empties everything whenever a comment is approved is a site paying for a full rebuild several times a day.

You can purge by hand from the toolbar — Cache → Empty the whole cache, or Purge this page while looking at it, which is what you want nine times out of ten.