shell:$ nslookup -timeout=2 -retry=1 'inv.nadeko.net'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
inv.nadeko.net	canonical name = koishi.nadeko.net.
Name:	koishi.nadeko.net
Address: 151.242.242.26
Name:	koishi.nadeko.net
Address: 2803:29e0:10:21aa::1