Schedule downtime notice

Hi I’m planning on upgrading my site and I wanted to post a scheduled downtime notice that would be viewed by any visitors to the site during the period I’m doing the work, but that would allow me to do the work behind the scenes and to view the affected pages while I’m doing the upgrade. Any ideas on how I would do that? Thanks in advance for any help.

The best thing to do would be to do the testing/crap on a subdomain and then switch them when you are ready to go live. That way, there is no downtime at all. The whole “downtime” concept is a bit silly, really.

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