shell:$ nslookup -timeout=2 -retry=1 'imdap-sea.alipay.com'
Server: 75.98.161.224
Address: 75.98.161.224#53
Non-authoritative answer:
imdap-sea.alipay.com canonical name = sg-divide.rr2.internet-intl.spanner.alipaydns.com.
Name: sg-divide.rr2.internet-intl.spanner.alipaydns.com
Address: 47.235.24.204
Name: sg-divide.rr2.internet-intl.spanner.alipaydns.com
Address: 47.235.21.53
;; communications error to 75.98.161.224#53: timed out
;; communications error to 69.39.86.5#53: timed out
;; no servers could be reached
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