I used to actually use this site/resource often to listen to my own signals on various frequencies before I discovered simpler ways of determining where a signal/packet is being heard from.

Either way, still a neat site to just find a random location, tune around and see what you can hear.

You can also use it in combination of opensource tools like to decode morescode, to receive weatherfax images, to decode amateur radio signals like FT8, JS8, HELL, PSK, etc.

Or maybe you just want to listen to some shortwave stations or listen to some old amateur radio enthusiasts talk about their health issues. Can certainly get lost in this.