According to this comment, [0] it looks like wildcard certs haven&#x27;t been ruled out, but have been deferred due to rather thorny issues regarding getting automated validation right.<p>[0] <a href="https:&#x2F;&#x2F;github.com&#x2F;letsencrypt&#x2F;acme-spec&#x2F;pull&#x2F;97#issuecomment-108646570" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;letsencrypt&#x2F;acme-spec&#x2F;pull&#x2F;97#issuecommen...</a>