shell:$ nslookup -timeout=2 -retry=1 'i.instagr.am'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
i.instagr.am	canonical name = www.instagram.com.
www.instagram.com	canonical name = z-p42-instagram.c10r.instagram.com.
Name:	z-p42-instagram.c10r.instagram.com
Address: 57.144.172.34
Name:	z-p42-instagram.c10r.instagram.com
Address: 2a03:2880:f356:22:face:b00c:0:4420