In case you are looking for the different interfaces:
Standard port = Uber own interface, mine Heppen is set to port 80
Kiwi port = 8073
Websdr.org port = 8901
Hermes P2 port = 1234
So example:
https://websdr.heppen.be
Schermafdruk op 2026-04-30 15-23-48.png
http://websdr.heppen.be:8901
Schermafdruk op 2026-04-30 15-24-58.png
http://websdr.heppen.be:8073
Schermafdruk op 2026-04-30 15-27-51.png
For port 1234 you need xxxHPSDR software, but I do not know how many users at the same time.