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