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

Non-authoritative answer:
Name:	signin.samsungknox.com
Address: 13.226.238.22
Name:	signin.samsungknox.com
Address: 13.226.238.78
Name:	signin.samsungknox.com
Address: 13.226.238.41
Name:	signin.samsungknox.com
Address: 13.226.238.113
Name:	signin.samsungknox.com
Address: 2600:9000:201f:9a00:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:e00:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:d400:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:8200:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:7c00:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:e200:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:4e00:12:78c2:8b80:93a1
Name:	signin.samsungknox.com
Address: 2600:9000:201f:2c00:12:78c2:8b80:93a1