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