Let's do a quick review of our Boost configuration upto this point. We have set up Boost to cache our Drupal nodes. This stores our Drupal nodes as static HTML web pages. When an anonymous user visits our site, they are delivered the static HTML version of the web page, and this helps considerably with speed and optimization of our page loads. We have set our minimum cache lifetimes for HTML, XML, and JSON content to be 1 hour. We also have the option of clearing all of our Boost-cached data and expired data manually by clicking on the respective buttons on the Boost settings page in the Boost File Cache pane.
We configured Boost to cache pages that contain URL variables even though we're using clean URLs on our site. We are caching all HTML documents or Drupal pages, all XML and feed content, all AJAX and JSON content, and CSS and JavaScript files. We also determined that we can tell Boost to only cache specific pages or use PHP code to run conditional statements...