https://www.testshib.org/register.html not available

[Peter Schober]

* Michael Fey <michael.fey at its.thm.de> [2021-06-08 10:24]:
> please fix https://www.testshib.org/register.html.

I though testshib was long dead?
https://shibboleth.net/pipermail/users/2018-November/042305.html

-peter