npub12q…870wm on Nostr: If i have a feed set up through rssblue, how do I view the underlying raw feed ...

If i have a feed set up through rssblue, how do I view the underlying raw feed itself? Like the big ass text file or whatever? Dovydas (npub186p…rxqq) ChadF and 33 others (npub177f…aaq7) npub1yvgrrzf4dnmu30qfhw95x87ruu0g2kpv3a64h8hpvqsre8qeuspsgd6pv9 (npub1yvg…6pv9) ?