An SSL certificate that helps server administrators save hundreds or even thousands of dollars on SSL Certificates by enabling them to install the same certificate to multiple websites and/or on multiple servers at no additional cost. In general, Wildcard Certificates can only be used to secure first-level sub-domains of the domain to which they are issued. For example, a standard Wildcard Certificate is issued to *.domain.com. Once that certificate is installed on the servers, users can connect securely to www.domain.com, mail.domain.com, autodiscover.domain.com, etc.
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