dig sykehusinnkjop.no MX
dig sykehusinnkjop.no A
curl "https://stat.ripe.net/data/prefix-overview/data.json?resource=217.114.94.2"
openssl s_client -connect sykehusinnkjop.no:443 -showcerts 2>/dev/null | openssl x509 -noout -issuer