Seems like you forgot to redirect www or non-www: you have both serving the site, search engines don't like duplicate content like that.
I intend to write a follow-up article on how to keep you system up-to-date since that is a little different than linux, too.
EDIT: Actually, I can reach www and non-www for both http and https and it seems to redirect properly. What exactly did you mean?
One should redirect to the other.