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

Non-authoritative answer:
bbs.hsw.cn	canonical name = a2deecf401f65ab4.cdn.jiashule.com.
Name:	a2deecf401f65ab4.cdn.jiashule.com
Address: 27.155.113.159
Name:	a2deecf401f65ab4.cdn.jiashule.com
Address: 36.158.231.217
Name:	a2deecf401f65ab4.cdn.jiashule.com
Address: 240e:965:802:1040::404
Name:	a2deecf401f65ab4.cdn.jiashule.com
Address: 2409:8c50:a00:2163:8000::4