nts or 
> just a rather old build environment:
>
> Some links involved, like https://pkg-status.freebsd.org/beefy2/ , no 
> longer lead to someplace specific to the machine name.

beefy2 was decommissioned.

> Some links, like https://pkg-status.freebsd.org/beefy11/ , lead to the 
> old place for a type of build, not to the modern place that is on a 
> newer machine.

As far as I can tell, beefy11 and beefy18 show similar pages.  I can't 
tell which is "older" and "newer".  Am I misunderstanding something?

> There a lot of lines where the "build environment" list overall does 
> not match what the modern "IPv4 Proxy" buttons/links displays (when it 
> does for the machine name).
>
> Note: the plain IPv4 and IPv6 icons do not link anywhere currently, 
> just the "IPv4 Proxy" of the 3 does.

Cc:ing dbaio, since he maintains portsfallout. :)

Philip