shell:$ nslookup -timeout=2 -retry=1 'v39-as.tiktokcdn.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
v39-as.tiktokcdn.com	canonical name = v39-sg.gtm.byteoversea.net.
Name:	v39-sg.gtm.byteoversea.net
Address: 71.18.74.195