shell:$ nslookup -timeout=2 -retry=1 'browser.qq.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:
browser.qq.com	canonical name = ins-wzqs0of2.ias.tencent-cloud.net.
Name:	ins-wzqs0of2.ias.tencent-cloud.net
Address: 43.135.106.65
Name:	ins-wzqs0of2.ias.tencent-cloud.net
Address: 43.135.106.77
;; communications error to 75.98.161.224#53: timed out
Name:	ins-wzqs0of2.ias.tencent-cloud.net
Address: 240d:c000:2010:1807:0:95aa:87ec:eca7
Name:	ins-wzqs0of2.ias.tencent-cloud.net
Address: 240d:c000:2010:1807:0:95aa:87eb:61d8