Wildcard Certificates от Lets в 2018

letsencrypt.org/2017/07/06/wildcard-certificates-coming-jan-2018.html

Let’s Encrypt will begin issuing wildcard certificates in January of 2018. Wildcard certificates are a commonly requested feature and we understand that there are some use cases where they make HTTPS deployment easier. Our hope is that offering wildcards will help to accelerate the Web’s progress towards 100% HTTPS.