Files relating to my talk at PHP London http://www.meetup.com/phplondon/events/17539656/ Usage: Install Varnish https://www.varnish-cache.org/docs/2.1/installation/install.html clone this repo to a folder accessible by your local webserver Copy varnish files listed below into relevant locations cp varnish /etc/sysconfig/varnish cp b3cft.vcl /etc/varnish/b3cft.vcl * Hit your webserver on port 80 * Hit your varnish server on port 6081 * Observe differences in headers and hits on webserver e.g. http://localhost/PHP-London-Varnish/example1-no-headers.php http://localhost:6081/PHP-London-Varnish/example1-no-headers.php