We check this website, now 10-jump.livejournal.com is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is 10-jump Down Right Now? - NO! 10-jump is up!
If you have problem with access to site 10-jump, and domain 10-jump.livejournal.com is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).