It is unfortunate that mirroring is not first class concept on web. There are some concessions like relative urls, but largely mirroring a modern web site is a

It is unfortunate that mirroring is not first class concept on web. There are some concessions like relative urls, but largely mirroring a modern web site is a non-trivial operation. If mirroring was easier and more prevalent, then the longevity of individual websites would be less critical.