shell:$ nslookup -timeout=2 -retry=1 'echo.io'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	echo.io
Address: 88.99.101.251
Name:	echo.io
Address: 2a01:4f8:221:11cd:9734:4c26:6044:5f33