What's wrong with security certificate for this site?
The name in the certificate does not match the host name to use. The certificate is valid for lots of different names and includes wildcards such as
*.meta.stackexchange.com (which would match against
unix.meta.stackexchange.com) but no name which matches against
meta.unix.stackexchange.com. Note that the included
*.stackexchange.com will not match because a wildcard matches only a single label, i.e.
unix but not