shell:$ nslookup -timeout=2 -retry=1 'www.usa.gov'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
www.usa.gov	canonical name = www.usa.gov.external-domains-production.cloud.gov.
Name:	www.usa.gov.external-domains-production.cloud.gov
Address: 54.192.55.54
Name:	www.usa.gov.external-domains-production.cloud.gov
Address: 54.192.55.40
Name:	www.usa.gov.external-domains-production.cloud.gov
Address: 54.192.55.95
Name:	www.usa.gov.external-domains-production.cloud.gov
Address: 54.192.55.2
Name:	www.usa.gov.external-domains-production.cloud.gov
Address: 2600:9000:200e:4400:0:91c:a40:93a1
Name:	www.usa.gov.external-domains-production.cloud.gov
Address: 2600:9000:200e:9200:0:91c:a40:93a1
Name:	www.usa.gov.external-domains-production.cloud.gov
Address: 2600:9000:200e:e200:0:91c:a40:93a1
Name:	www.usa.gov.external-domains-production.cloud.gov
Address: 2600:9000:200e:ac00:0:91c:a40:93a1
Name:	www.usa.gov.external-domains-production.cloud.gov
Address: 2600:9000:200e:b400:0:91c:a40:93a1
Name:	www.usa.gov.external-domains-production.cloud.gov
Address: 2600:9000:200e:1200:0:91c:a40:93a1
Name:	www.usa.gov.external-domains-production.cloud.gov
Address: 2600:9000:200e:bc00:0:91c:a40:93a1
Name:	www.usa.gov.external-domains-production.cloud.gov
Address: 2600:9000:200e:8400:0:91c:a40:93a1