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

Non-authoritative answer:
Name:	securemailtkr.com
Address: 3.211.203.47
Name:	securemailtkr.com
Address: 52.86.123.32