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