Posted by DFM on Feb 7, 2014
Advantages and Limitations of a WildCard SSL Certificate

Advantages and Limitations of a WildCard SSL Certificate

The purpose of a wildcard SSL certificate is to secure the URL you want for your website. Not only that, you get to secure however many subdomains you want. These are designed for system administrators who are interested in saving time and money, which every good administrator would surely like to do. If you are a conscientious administrator and run multiple subdomains or maintain multiple servers, you are the target market for a wildcard certificate. In addition to helping you secure the URL you would like and the subdomains associated with that URL, you can enable SSL encryption on all of the subdomains you have selected using the same certificate.

About the wildcard SSL cert

WildCard SSL CertificateThe only thing you need to make sure of is that the various subdomains are all controlled by the same institution or business and also have the same second-level domain name. As an example, if such a certificate is issued to Generic Company, whose website is GenericCompany.com, the certificate can be issued like *.GenericCompany.com and then be applied to secure subdomains like payment.genericcompany.com or support.genericcompany.com or accounts.genericcompany.com. The best way to achieve a high level of security across many types of configurations is to not copy or share a certificate among multiple servers. In addition, there are limitations to using this type of certificate. The most obvious limitation is that if the security of one subdomain is compromised, then it is very likely for all the subdomains to be compromised. It can also pose management problems because if you need to revoke one certificate, you will need to get new certificates for all other subdomains. There are also compatibility issues. For example, this type of certificate may not work so great with legacy server-client configurations. And finally, some of the certificates you can purchase are not protected by an extended warranty. Hope this article helped you with the wildcard SSL certificate.