Caching is a crucial part when it comes for performance. It is quite common to use a reverse proxy, like Varnish, to serve Drupal generated content to anonymous users. In this session, we will try to go further and see how we can also serve cached content to authenticated users using ESI (Edge Side Includes).

After a quick reminder of how a reverse proxy operates and what are ESI principles, we'll dig into how to integrate this with Drupal: How to make Drupal 'talk' to Varnish, how to generate the ESI urls, what mistakes to avoid as a Drupal dev, …