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