Original idea was to write a doctest in book, similar to book/docs/dev/redirected.rst, which tests our public online demo sites. I think it should be easy to also sign in (because the passwords a known).

But thinking about it, actually we should move these tests from the book repository to somewhere else, because they aren't part of Lino. Maybe we should run a little monitoring process, similar to [url montastic.com/checkpoints montastic]. Actually it should be fairly easy to implement a plugin "monit" and have it running on Jane.