That the certificate isn't trusted is to be expected, because the SSL certificate is signed for usage on "darkcointalk.org" and not for "85.159.209.13".

However Apple really takes protecting users from themselves a couple of steps too far. I think there's a setting somewhere in Safari/MacOS to ask you what to do when SSL certificates aren't trusted.


edit: It won't be able to fall back to HTTP because darkcointalk.org redirects HTTP to HTTPS.