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Re:Should you use www or not in your domain? (2017) by toast0 on Sunday November 11, 2018 @11:41AM (#18427192)
If you plan to use a CDN in front of your site at the Apex, it severely constrains your options. You either need to pick a CDN that only uses anycast, so you can plop in a staticy A record, or you need to delegate your domain to their nameservers so they can send different resolvers different records. Those aren't necessarily bad options, but it leaves out a lot of CDNs that either don't do anycast or do a mix of anycast and unicast, and it leaves out the possibility of using geodns to use one CDN in one region and another in other reasons.

I'm a bit scale focused though. If your site is never going to need a CDN, you can of course pick aesthetics over serviceability. But if this is something you hope to one day get big, you might as well make an easy decision to prepare for it at the start. You will want to support any inbound links you get for as long of forever as possible, so it's nice if they are to the right hostname to start with.

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