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www: 'A' record or CNAME?


Definitely CNAME.

It fits the scheme of what you are doing in that *must* be an A record, and is the same host, and therefore is properly, an alias to One of them should be a CNAME, and since cannot be a CNAME, then ...

And, dns aside, this scheme helps to avoid the site content from being classified as duplicate content at two different hosts.

certain well known search engine have started to alleviate it's problems with misapplied duplicate content penalties, but be safe. 

Some publishers went so far as to not respond to http at one or the other. Some still do to this day. Nothing more annoying than typing in and not getting a response until it is changed to

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Article ID: 3
Category: Knowledgebase

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