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