In a world full of scalability challenges, a reverse caching proxy has become an essential tool to protect your backend servers. This talk is dedicated to that and compares Varnish to Nginx as the two tools for the job. We'll be talking about setup, configuration, default behaviour, invalidation, monitoring and some advanced tricks such as ESI. https://speakerdeck.com/thijsferyn/reverse-caching-proxies-varnish-or-nginx-phpuk15