Wildcard certificates have significant constraints of single level of the subdomain matching and security risks[1], putting side the debate of the real benefits

Wildcard certificates have significant constraints of single level of the subdomain matching and security risks[1], putting side the debate of the real benefits of "not exposing subdomains". [1]: https://tools.ietf.org/html/rfc6125#section-7.2 https://tools.ietf.org/html/rfc6125#section-7.2