After the thunderstorm this summer, when most of our hardware was destroyed, a new WebSDR hardware has been developed.
Using 6 pcs of RTL-SDR Blog V3 dongles on a Dell server in direct sampling mode, we now offer a 6 band HF reciever.
The reciever is online at http://websdr.sk4ko.com:8901/
Also try the YO3GGX Dan app for the web receiver. Search the PRXTX app and select the SK4KO receiver.