dig sallanchesmontblanc.com MX
dig sallanchesmontblanc.com A
curl "https://stat.ripe.net/data/prefix-overview/data.json?resource=51.210.42.76"
openssl s_client -connect sallanchesmontblanc.com:443 -showcerts 2>/dev/null | openssl x509 -noout -issuer