shell:$ nslookup -timeout=2 -retry=1 'add1challenge.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	add1challenge.com
Address: 5.161.230.87
Name:	add1challenge.com
Address: 46.62.237.138
Name:	add1challenge.com
Address: 5.161.47.86
Name:	add1challenge.com
Address: 195.201.128.179
Name:	add1challenge.com
Address: 5.78.156.59
Name:	add1challenge.com
Address: 76.223.91.20
Name:	add1challenge.com
Address: 2a01:4ff:f0:5f41::1
Name:	add1challenge.com
Address: 2a01:4ff:1f0:dd50::1
Name:	add1challenge.com
Address: 2600:9000:a612:55d9:1b82:e963:5969:d2c7
Name:	add1challenge.com
Address: 2a01:4f8:1c1e:d6f1::1