$ host miau.jeder.pl
miau.jeder.pl is an alias for jeder.pl.
jeder.pl has address 49.13.25.17
jeder.pl has IPv6 address 2a01:4f8:c012:9372::2
$ curl --ipv6 --head --connect-timeout 15 https://miau.jeder.pl
curl: (28) Failed to connect to miau.jeder.pl port 443 after 15005 ms: Timeout was reached
$ curl --ipv4 --head --connect-timeout 15 https://miau.jeder.pl
HTTP/1.1 200 OK