We check this website, now uni-weimar.de is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is uni-weimar Down Right Now? - NO! uni-weimar is up!
If you have problem with access to site uni-weimar, and domain uni-weimar.de is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).