Some of you know by now I'm hosting my website and a personal file folder as web folders. Well I just decided to check on my bandwidth usage and this makes not the first time I've seen weird things on the monitor window.

There is no file in that folder called robots.txt, that's what's weird, and another one I see commonly is "favicon.ico", I see this pop up even when I see people who I know are browsing the site, but there is no favicon.ico file there. Does anybody know what these files are? They're not hidden either, I've looked.