shell:$ nslookup -timeout=2 -retry=1 'vivo.cn'
Server: 127.0.0.53
Address: 127.0.0.53#53
Non-authoritative answer:
vivo.cn canonical name = vivo.cn.eo.unicomcdn.com.cn.
vivo.cn.eo.unicomcdn.com.cn canonical name = vivo.cn.eo.dnse0.com.
Name: vivo.cn.eo.dnse0.com
Address: 43.175.144.123
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43.175.144.123