shell:$ nslookup -timeout=2 -retry=1 'yixin.im'
;; communications error to 1.1.1.1#53: timed out
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
yixin.im	canonical name = yixin-im.cname.saaswaf.com.
yixin-im.cname.saaswaf.com	canonical name = zjtcv3-pro.cache.saaswaf.com.
zjtcv3-pro.cache.saaswaf.com	canonical name = zjtcv3-pro.cache.dbappwaf.cn.
zjtcv3-pro.cache.dbappwaf.cn	canonical name = zjtc-cluster-1.cnwaf.dbappwaf.cn.
Name:	zjtc-cluster-1.cnwaf.dbappwaf.cn
Address: 115.239.140.134
Name:	zjtc-cluster-1.cnwaf.dbappwaf.cn
Address: 122.229.130.108