I Can Has Mirror is an online web application designed to generate a failover URL of any web page which goes down due to heavy traffic or for any other reason. It offers 4 types of mirror sources – Auto (Randomly Alternates), Coral CDN, Google Cache, and Custom URL (specify cache server) from where you can get a link of cached copy.
All you need is to paste the link of the web page which is down or overwhelmed with a lot of hits, specify Mirror Source and click Generate Failover URL. It will promptly generate a failover URL of cached page and display it in the bottom.

You can replace the source link with the one it has generated for you to redirect all the traffic.