The Boost module for Drupal is an easy way to increase page load performance by caching static pages on your website to files. Doing so significantly decreses page load times and server load for anonymous visitors. This module is ideal for websites that don't require a user account, such as most corporate websites, restaurant websites, and informational websites.
You can set up this module on almost any server since it doesn't require any additional server configuration like many other Drupal optimization techniques.
Note to Drupal developers:
Developing on a Drupal website with Boost enabled is not recommended. You'll have to clear the Boost cache, which is separate from Drupal's built in performance cache. While developing, be sure to clear the Boost cache first, then turn off the “Static Page Cache” so your content, CSS, and templates won't be cached.