I am a relative newcomer to servers and hosting websites so I thought I'd ask a simple question here.
To transfer a heroku app to a domain, I looked up the instructions here.
I then ran
heroku domains: add www.mydomainname.com
Now, when I open the web site it says
This webpage is not available
I also read this snippet on Heroku DevCenter
DNS changes can take several minutes to several days to take effect. Lowering your DNS TTL ahead of time can minimize, but not eliminate, this propagation time.
Does that mean I just have to wait?
I didn't really understand what they meant.