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