shell:$ nslookup -timeout=2 -retry=1 'shop.viettel.vn'
Server: 1.1.1.1
Address: 1.1.1.1#53
Non-authoritative answer:
shop.viettel.vn canonical name = shop.viettel.vn.cdn.cloudflare.net.
Name: shop.viettel.vn.cdn.cloudflare.net
Address: 172.66.2.118
Name: shop.viettel.vn.cdn.cloudflare.net
Address: 162.159.142.122
Name: shop.viettel.vn.cdn.cloudflare.net
Address: 2a06:98c1:58::26e
Name: shop.viettel.vn.cdn.cloudflare.net
Address: 2606:4700:7::26e
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