How to use LetsEncrypt with Multiple Domains on Nginx and Ubuntu [↗]
There are many reasons to set up SSL hosting for your domain, top of all would be that Google is now giving SEO priority to sites that utilize SSL. Regardless of the benefits, it can be a bit intimidating to set up SSL, not to mention expensive. LetsEncrypt is a service that provides free SSL certificates to everyone so we’re going to cover the very basics of how to do this. Don’t worry, it’s pretty painless.
A good step-by-step guide to get up-and-running with Let’s Encrypt on Ubuntu with Nginx.