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