Because you requested the table using a browser (rather then an NTRIP Client) it has been returned to you as an HTML page.
SOURCETABLE 200 OK Server: SubCarrier Systems Corp SNIP simpleNTRIP_Caster_[wLITE]R3.17.00/of:Dec 12 2024 Date: Thu, 31 July 2025 12:45:28 UTC Content-Type: text/plain Content-Length: 388 STR;RTCM3EPH;Assisted-GNSS;RTCM 3.3;1019(1),1020(1),1042(1),1043(1),1044(1),1045(1),1046(1);0;GPS+GLO+GAL+BDS+QZS+SBAS;IGS;DEU;50.09;8.66;1;1;sNTRIP;none;N;N;18920; STR;RVREF;Radohova vas;RTCM 3.0;1004(1),1006(10),1008(10),1013(15);3;GPS;SNIP;SVN;45.95;14.86;1;0;sNTRIP;none;N;N;0;none; NET;SNIP;Boris B.;N;N;multibox.nohost.me;85.10.23.230:2101;boris.bilc@gmail.com;; ENDSOURCETABLE
If this Caster is on a public IP, your can decode it at SNIP's NTRIP Caster Table Decoder page
[You can press the 'View All' button to see the Base Stations displayed on a map.]