In this blog post I will show you a simple technique to improve your web application performance by modifying headers. Please keep in mind, if you're using HTTP reverse proxy caching applications such as Varnish you might harm your application performance or your settings could be ignored.

This technique could help improve page loads for authenticated users where reverse proxy caching disabled.

Important: Drupal already already provides all the required headers when Performance settings properly configured. This is information is generic and could be very helpful for decoupled projects or any other frameworks.