This is IMHO a very good practice and it will be even easier with the upcoming wildcard certificates from Let's Encrypt: https://letsencrypt.org/2017/07/06/wil

This is IMHO a very good practice and it will be even easier with the upcoming wildcard certificates from Let's Encrypt: https://letsencrypt.org/2017/07/06/wildcard-certificates-coming-jan-2018.html https://letsencrypt.org/2017/07/06/wildcard-certificates-com...