One of the most unique certificates in the industry, the Multiple Domain Wildcard SSL Certificates by Comodo can secure an unlimited number of sub-domains under multiple domains. This SAN enabled wildcard SSL certificate is an excellent choice for companies that have a lot of domain names on the same server, as it allows you to secure any domain or common name using just one certificate. With three domain names already included in the package, you can now add up to 250 additional domain names. The Comodo Multi-Domain Wildcard SSL is a very cost-effective option and helps you simplify the website security administration by consolidating sub-domains on a single certificate.
PLEASE NOTE: A non-wildcard domain (e.g. www.yourdomain.com) must be listed as the Common Name, or base domain in the CSR. This certificate will secure 2 wildcard domains (e.g. *.yourdomain.com, *.domain.com, etc.) by default. You must purchase additional SAN support if you need to secure more than 2 wildcard or non-wildcard domains.
These certificates are SAN supported and can secure unlimited sub-domains under multiple domains. You can add up to 250 additional domains to the certificate at a very economical price. Three domains are already included in the standard package.