We check this website, now pr12-thail-amullet.rocket.denisyakovlev.moscow is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is pr12-thail-amullet Down Right Now? - NO! pr12-thail-amullet is up!
If you have problem with access to site pr12-thail-amullet, and domain pr12-thail-amullet.rocket.denisyakovlev.moscow is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).
Check your network setting, and contact your ISP
support if its needed.
Also, check your hosts file (wikipedia about
hosts file) for some records about domain pr12-thail-amullet.rocket.denisyakovlev.moscow. And try to remove it.