Found in public certificate transparency logs, which record every publicly trusted certificate. Some subdomains may no longer exist.
| Let's Encrypt |
| Report → |
| mail.biosadda.com | Nov 2018 | May 2019 | No DNS | Let's Encrypt | Report → |
| webdisk.biosadda.com | Nov 2018 | May 2019 | No DNS | Let's Encrypt | Report → |
| webmail.biosadda.com | Nov 2018 | May 2019 | No DNS | Let's Encrypt | Report → |