God. Dammit. This is the second time today I’ve seen www referred to as a subdomain & I’m going to lose my shit.
Does it have an A record? Then it’s a hostname. The use of a domain as a hostname (CNAMEing www to an A record for the domain) still gives me hives.
#GetOffMyLawnhttps://twitter.com/_r00k_/status/1039271145181081600 …
That seems very arbitrary. What if "us" had no records under it, whereas foo.www.example[.]com existed?
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Well now we're getting into the technical weeds of DNS but for something to be a (sub)domain there must be an SOA record saying what nameserver the (sub)domain is delegated to. And corresponding NS record and A record for the authoritative nameserver.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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