I can't browse google.com.hk but why?
jc@jc-T5400:~$ systemd-resolve google.com.hk
google.com.hk: resolve call failed: DNSSEC validation failed: failed-auxiliary
jc@jc-T5400:~$ systemd-resolve google.com
google.com: 172.217.24.46
-- Information acquired via protocol DNS in 55.4ms.
-- Data is authenticated: no
jc@jc-T5400:~$ systemd-resolve google.com.hk
google.com.hk: resolve call failed: DNSSEC validation failed: failed-auxiliary
jc@jc-T5400:~$ systemd-resolve google.com
google.com: 172.217.24.46
-- Information acquired via protocol DNS in 55.4ms.
-- Data is authenticated: no