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