Subdomain Me - add www with an A record

Re:Subdomain Me - add www with an A record by storborg on Tuesday January 04, 2011 @07:01PM (#2069150)

I may be wrong here, but I think there's one good reason to use anything.example.com instead of example.com: with the naked domain, you can't have a separate domain for static assets which the client doesn't send the cookie to (for performance improvement). If you set a cookie with the domain example.com, it will still get sent to static.example.com.

Granted, you could use examplecdn.com or something, but then you have to register and manage more domains.

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Re:Subdomain Me - add www with an A record by apgwoz on Tuesday January 04, 2011 @07:08PM (#2069180)

Isn't that what the domain portion of the set-cookie header is for?

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Re:Subdomain Me - add www with an A record by seabee on Tuesday January 04, 2011 @07:32PM (#2069244)

It gets propagated to subdomains, it doesn't restrict it to just the domain specified.

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Re:Subdomain Me - add www with an A record by apgwoz on Tuesday January 04, 2011 @08:24PM (#2069394)

Yes, it gets propogated to subdomains, but the point was that if you have subdomain X.y.z, as long as you set the cookie for y.z, the cookie is valid for X.y.z and U.y.z.

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Re:Subdomain Me - add www with an A record by storborg on Tuesday January 04, 2011 @08:30PM (#2069404)

My point was that you don't want the cookie to be sent to other subdomains, so you'd actually want to set the domain to X.y.z. You can't do that if you're web domain is y.z.

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