I Encrypt use of fear on my websites, but unfortunately I have noticed that my HTTPS websites with Encrypt Let are not visible on the Safari browser over 6 version age (thus all versions of Windows and older versions for Mac), for example in 5 version of Safari this website www.immobiliarezzo.it is not visible.
Can I fix this in some way?
This problem is often caused by cryptographic settings on the web server (such as protocol versions and ciphersuites), rather than by the certificate itself.
your server closed the connection before performing a TLS negotiation when the client tried to act like Safari 5. This could be due to some kind of firewall policy but perhaps is also a symptom of protocol version or ciphersuite mismatch. (I don’t know why the server would disconnect in this case instead of returning a TLS error message, but it’s possible.)
I think it might have something to do with the fact Safari 5 only supports SSLv3 and TLSv1.0 and the current server configuration only supports TLSv1.1 and TLSv1.2.
The reason SSL Labs doesn't provide an useful error message is because it doesn't get a reason from the server at all. The server just disconnects without a SSL error:
@massimo, you can probably then get Safari 5 support by enabling the older protocols in your web server configuration. The Mozilla configuration generator may be able to help with this.