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