CERTBOT - Wildcard Domain Renewal by DNS
From wiki.1001solutions.net
Command
certbot certonly --server https://acme-v02.api.letsencrypt.org/directory --manual --preferred-challenges dns -d '*.example.com,example.com'
ReadMe
certbot certonly --server https://acme-v02.api.letsencrypt.org/directory --manual --preferred-challenges dns -d '*.example.com,example.com'