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