We check this website, now hdmovies300.com is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is hdmovies300 Down Right Now? - NO! hdmovies300 is up!
If you have problem with access to site hdmovies300, and domain hdmovies300.com is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).