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