mirror page suggestions

Hello, a user complained about a broken mirror:

https://launchpad.net/ubuntu/+mirror/mirror.intergrid.com.au-archive

The page currently has piles of green results under these headings:

- Versions and architectures mirrored
- Source code mirrored

There's some bug reports that suggest it's not actually functional[1], but okay, the prober can't download every single file. I think this display would be more useful if it had big red ERROR markers for the missing releases.

There's a tiny text near the top that says 'broken' but there's no big red splotch or something to draw the eye away from the pile of green.

But what really brought me here today is the navigation: visit https://launchpad.net/ubuntu/+mirror/ to see what the entry looks like from another view --> 404. "Lost something?" I had expected to get one of:

- https://launchpad.net/ubuntu/+cdmirrors
- https://launchpad.net/ubuntu/+archivemirrors

I couldn't find this unhappy mirror on either list. I *really* wish the user had stuck around a bit to tell us how on earth they had found the mirror in the first place. (Or even the URL to the mirror.) Can we wire up the /+mirror/ url so that it does something useful?

Thanks

[1]: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1991845
     https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1997501