shell:$ nslookup -timeout=2 -retry=1 'cdn.todo1.com'
Server: 1.1.1.1
Address: 1.1.1.1#53
Non-authoritative answer:
cdn.todo1.com canonical name = cdn.todo1.com.cdn.cloudflare.net.
Name: cdn.todo1.com.cdn.cloudflare.net
Address: 162.159.254.111
Name: cdn.todo1.com.cdn.cloudflare.net
Address: 162.159.255.111
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