is HD Tracks out of business?

The site is offline today.  I saw a post about the service no longer being available outside USA from a post in December 2017.  Are they done?

Where are people buying high res tracks?  Acoustic Sounds is one place.  Any other favorites?
weird.  nothing loads here.  I used to be a customer.  Just bought an album from acoustic sounds instead.  In fact, I buy most of my final from them, and they have a nice selection of high res digital.
are you running ad blockers or other things like that?
No ad blockers, but I just tested it again and it works fine! Perhaps  they were having some trouble with their server...

Case closed