I've noticed on a couple of client sites that I manage for them, that there have been some visitors trying to access "radio.txt", so out of curiosity, I've tried doing a few searches to determine exactly why, but could only find information on radio stations and other weird info that has nothing to do with people trying to access the file. I've heard of robots.txt (obviously), and humans.txt, but not radio.txt. So I am now here to see if anyone knows what this is for?