shell:$ nslookup -timeout=2 -retry=1 'pbdebugaccess.iflix.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
pbdebugaccess.iflix.com	canonical name = ins-5u0qh66h.ias.tencent-cloud.net.
Name:	ins-5u0qh66h.ias.tencent-cloud.net
Address: 129.226.102.98
;; communications error to 75.98.161.224#53: timed out