Make Browsers Cache Static Files On nginx
This tutorial explains how you can configure nginx to set the Expires HTTP header and the max-age directive of the Cache-Control
HTTP header of static files (such as images, CSS and Javascript files)
to a date in the future so that these files will be cached by your
visitors' browsers. This saves bandwidth and makes your web site appear
faster (if a user visits your site for a second time, static files will
be fetched from the browser cache).