This guide is in draft form...
To encrypt you website traffic, you'll need to install a Secure Sockets Layer (SSL) certifiate onto your IIS Web Server. There are two main steps involved in this installation:
You can use Let's Encrypt to secure the site for free via Win-Acme. I read through this article on how to install it and use it to generate/install the SSL certificate for your IIS website. It's a pretty straightforward process and the article looks good. You can likely skip straight to Step 4. It will also automatically renew the cert before it expires (these generated certs usually last between 1-3 months, so auto-renew is handy).
More coming soon....