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A comment on Why use www?. Parent comment

Re:Why use www? by tadfisher on Saturday January 30, 2016 @10:14PM (#11005065)
You will want the naked and www subdomains to point to the same address in your DNS configuration, and you will want to configure your webserver to issue a 301 redirect to the canonical subdomain at the HTTP layer. There are several reasons for this, but the most pressing is that it does not make sense to use a CNAME record for the naked domain.
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Re:Why use www? by kuschku on Sunday January 31, 2016 @09:23AM (#11006467)
If you have a larger setup, you’d want to already serve the 301 on your load balancer.
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