shell:$ nslookup -timeout=2 -retry=1 'sf-tb-sg.ibytedtos.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
sf-tb-sg.ibytedtos.com	canonical name = sf-tb-sg.ibytedtos.com.edgesuite.net.
sf-tb-sg.ibytedtos.com.edgesuite.net	canonical name = a1810.w155.akamai.net.
Name:	a1810.w155.akamai.net
Address: 2.16.170.240
Name:	a1810.w155.akamai.net
Address: 2.16.170.245