shell:$ nslookup -timeout=2 -retry=1 'test.iflix.com'
;; communications error to 75.98.161.224#53: timed out
Server:		69.39.86.5
Address:	69.39.86.5#53

Non-authoritative answer:
test.iflix.com	canonical name = ins-y8zyz7ph.ias.tencent-cloud.net.
Name:	ins-y8zyz7ph.ias.tencent-cloud.net
Address: 14.22.6.249