How do I redirect requests in case my site gets unavailable?

[cCorE]

In case e.g. the server my site is on goes offline, how can I redirect page views to a different site, e.g. on a backup site or my Twitter account for status updates?

[swirly]

If the server goes down, there wouldn't be a way to redirect I don't think. Unless you have something on your domain you can use as a redirect. If you have a redirect on your server and the server goes down, then your redirect goes down with it so that wouldn't be possible. Check your domain registrar, there may be a way to do it on there.