shell:$ nslookup -timeout=2 -retry=1 'cdn.cloudflare.polyfill.net'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	cdn.cloudflare.polyfill.net
Address: 185.85.110.3
Name:	cdn.cloudflare.polyfill.net
Address: 2a14:6640:200:1::3