How can I determine the source of these notifications? (macOS) How can I determine the source of these notifications? I don't have any app that is called "Computing on Demand" and I can't find any reference to it on the Internet. I've thought about turning off all notifications and turning back on one by one but I'm not sure that would turn them off if its malicious.
https://computingondemand.com/ 
Found this website.

You can also get notifications from websites on your system. Maybe go to the website and check if the notifications are enabled. Click the lock icon to see the notification status.