LetsEncrypt configure key-size (4096) through panel
Please make it possible to set letsencrypt key-size to 4096 via the panel instead of altering the panel.ini file that does not work at all! These kind of settings should be available online.
Please configure higher Diffie-Hellman Parameters!
for all apps: HTTP (APACHE&NGONX), MAIL (IMAP&SMTP Server), FTP...
And as you go... https://cipherli.st/ ;-)