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

Non-authoritative answer:
v39.tiktokcdn.com	canonical name = v31.true.byteoversea.net.
Name:	v31.true.byteoversea.net
Address: 124.121.248.185