shell:$ nslookup -timeout=2 -retry=1 'sf77-checkout-a.tiktokcdn.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
sf77-checkout-a.tiktokcdn.com	canonical name = 1948508213.rsc.cdn77.org.
Name:	1948508213.rsc.cdn77.org
Address: 79.127.251.10