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