shell:$ nslookup -timeout=2 -retry=1 'three-cust.hcaptcha.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	three-cust.hcaptcha.com
Address: 104.19.229.21
Name:	three-cust.hcaptcha.com
Address: 104.19.230.21