Techorama 2017

Websites, web applications and APIs, they all speak HTTP. As a developer most of us are familiar with HTTP, but when it actually comes to creating cacheable web content, there is still a lot to be learned.

In this presentation I will show you how to leverage specific headers to achieve a maximum hit rate without losing touch with some of the challenges of real-life web projects

The following topics will be covered:

* The syntax of cache-control headers

* How to use cache-control headers to control whether or not to cache

* How to use cache-control headers to control the time to life of our cached objects

* How to deal with cookies

* How to separate stateful from stateless content

* How to architect content blocks in your code using Edge Side Includes, HInclude and AJAX

* How to boost your performance by adding a reverse cache proxy like Varnish

* How to invalidate your cache

* How to leverage Content Delivery Networks

* How to create cache variations

* How to reduce backend load and bandwidth by performing conditional HTTP requests