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