shell:$ nslookup -timeout=2 -retry=1 'b.a11k.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	b.a11k.com
Address: 159.69.163.101
Name:	b.a11k.com
Address: 195.201.208.166
Name:	b.a11k.com
Address: 116.202.60.226
Name:	b.a11k.com
Address: 195.201.208.168
Name:	b.a11k.com
Address: 157.90.85.57
Name:	b.a11k.com
Address: 2a01:4f8:c0:2a5c::1
Name:	b.a11k.com
Address: 2a01:4f8:c0:2f03::2
Name:	b.a11k.com
Address: 2a01:4f8:c0:2a4a::1
Name:	b.a11k.com
Address: 2a01:4f8:252:564d::2
Name:	b.a11k.com
Address: 2a01:4f8:c0:33d8::1