shell:$ nslookup -timeout=2 -retry=1 '91cgb21.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
Name:	91cgb21.com
Address: 3.168.73.17
Name:	91cgb21.com
Address: 3.168.73.124
Name:	91cgb21.com
Address: 3.168.73.6
Name:	91cgb21.com
Address: 3.168.73.51
Name:	91cgb21.com
Address: 2600:9000:2508:9a00:c:90ea:6780:93a1
Name:	91cgb21.com
Address: 2600:9000:2508:a600:c:90ea:6780:93a1
Name:	91cgb21.com
Address: 2600:9000:2508:5200:c:90ea:6780:93a1
Name:	91cgb21.com
Address: 2600:9000:2508:8200:c:90ea:6780:93a1
Name:	91cgb21.com
Address: 2600:9000:2508:a800:c:90ea:6780:93a1
Name:	91cgb21.com
Address: 2600:9000:2508:c800:c:90ea:6780:93a1
Name:	91cgb21.com
Address: 2600:9000:2508:3400:c:90ea:6780:93a1
Name:	91cgb21.com
Address: 2600:9000:2508:3200:c:90ea:6780:93a1