How do I export my certificate from cPanel?
1. First, you need to make sure you have root access. Otherwise, please contact the web hosting / server administrator.
2. Log on to SSH.
3. Run the following command and replace the domain name with your domain name such as sectigo.com.
# openssl pkcs12 -export -out /backup/domain_name.pfx -inkey /etc/ssl/private/domain_name.key -in /etc/ssl/certs/domain_name.crt