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