The SSL certificate of website of the Italian Consulate General in San Francisco for the online visa appointments has been expired for almost a month. If you had to apply for visa appointment, would you do so anyway?
They most likely forgot to renew their cert on time, which is worrisome from a gov't institution, but not necessarily a sign of evil activity.
I'd try to contact them through other means (i.e. phone, email, etc.) to 1) schedule my appointment out of band and 2) notify them that their certificate has expired.
I'd try to contact them through other means (i.e. phone, email, etc.) to 1) schedule my appointment out of band and 2) notify them that their certificate has expired.