To secure all subdomains of your domain you will need to get WildCard certificate. Subdomains including *.mydomain.com and the following host names:

mydomain.com
www.mydomain.com
login.mydomain.com
secure.mydomain.com
support.mydomain.com
*.sub.mydomain.com

Kindly contact our sales department (sales@serverfreak.com) if you wish to subscribe to Wildcard certificate.

Updated on: 06 / 12 / 2018