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