dns lookup: cannot resolve domain

[RealYukiSan]

the domain is 'sg.ss.btc.com':

direct connection failed: dial tcp: lookup sg.ss.btc.com on 127.0.0.53:53: read udp 127.0.0.1:37911->127.0.0.53:53: i/o timeout

I also tried resolve it with nslookup:

$ nslookup sg.ss.btc.com 8.8.8.8
;; communications error to 8.8.8.8#53: timed out
;; communications error to 8.8.8.8#53: timed out
;; communications error to 8.8.8.8#53: timed out
;; no servers could be reached
$ nslookup sg.ss.btc.com 1.1.1.1
;; communications error to 1.1.1.1#53: timed out
;; communications error to 1.1.1.1#53: timed out
;; communications error to 1.1.1.1#53: timed out
;; no servers could be reached