Comodo allows its Wildcards to be used on unlimited servers
Many Certificate Authorities have strict policies when it comes to how many servers you may install their SSL certificates on. For instance, Symantec makes you pay a license for each server.
Comodo doesn’t believe in this, rather it wants to empower its customers to use its certificates on as many physical servers as they need. This means you can install one certificate on as many servers as you want or need without having to pay any additional fees.
By extension, this means you can use a Comodo Wildcard SSL certificate with multiple IP addresses on your system for all of your sub-domains.
Comodo Wildcard
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