What is a wildcard certificate?

A Wildcard SSL certificate is used to secure unlimited sub-domains that share a common base domain. But the domain itself won't be protected.

For example: A Wildcard certificate issued to “*.mydomain.com” can be used to secure the following domains:

- login.mydomain.com
- secure.mydomain.com
- support.mydomain.com
- www.mydomain.com etc.

Along with multiple subdomains, a Wildcard SSL will also secure naked mydomain.com

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