shell:$ nslookup -timeout=2 -retry=1 'recaptcha.net.cn' Server: 75.98.161.224 Address: 75.98.161.224#53 Non-authoritative answer: Name: recaptcha.net.cn Address: 142.250.190.3 Name: recaptcha.net.cn Address: 2607:f8b0:4009:802::2003