shell:$ nslookup -timeout=2 -retry=1 'a.quora.com'
Server: 75.98.161.224
Address: 75.98.161.224#53
Non-authoritative answer:
a.quora.com canonical name = a.quora.com.cdn.cloudflare.net.
Name: a.quora.com.cdn.cloudflare.net
Address: 162.159.153.247
Name: a.quora.com.cdn.cloudflare.net
Address: 162.159.152.17
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