shell:$ nslookup -timeout=2 -retry=1 'c.iamdt.dpdns.org'
Server: 1.1.1.1
Address: 1.1.1.1#53
Non-authoritative answer:
Name: c.iamdt.dpdns.org
Address: 104.21.61.166
Name: c.iamdt.dpdns.org
Address: 172.67.212.43
Name: c.iamdt.dpdns.org
Address: 2606:4700:3035::6815:3da6
Name: c.iamdt.dpdns.org
Address: 2606:4700:3030::ac43:d42b
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