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