A wildcard certificate (like SSL/TLS) is a public key certificate that can protect several subdomains inside a domain and is usually acquired from a trustworthy public Certificate Authority (CA).
You should wildcard certificates because it has many advantages -
1. Secure and number of subdomains
2. Straightforward certificate administration
3. Cost-Cutting
4. Fast and Forward Implementation
There are some potential security risks of wildcard certificates:
1. Access to Private Keys
2. Fake Certificates
3. Certificate Management
4. Web-server Security
5. A single point of failure
There is some strategy behind using wildcard certificates. Know the correct and accurate strategy and make the right use of it.
