I tracked down the solution whilst rifling through the wp-includes/file.
In there is a definition for the cache age which is set by default to refresh once every hour.
A default Word Press installation already has RSS set up for the site entries and comments.
However, you can easily add external RSS feed content to your site.
RSS (Really Simple Syndication) plugins are used to send your newly published posts and pages to news feed readers or mailboxes.
People use feed readers like Feedly and Feedbin to keep tabs on websites that publish quality content on a consistent basis.
In order to subscribe, the reader clicks on a Subscribe button. In addition, it combines with aggregators for easier reading, compiling, and organization.In short, RSS keeps your readers reading all the content they want, in one location.) is an open web format that is used to publish updated content.Clients use RSS readers (sometimes also called aggregators) to subscribe to feeds that contain links to the newest content.