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