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