Got a warning for my blog going over 100GB in bandwidth this month... which sounded incredibly unusual. My blog is text and a couple images and I haven't posted anything to it in ages... like how would that even be possible?
Turns out it's possible when you have crawlers going apeshit on your server. Am I even reading this right? 12,181 with 181 zeros at the end for 'Unknown robot'? This is actually bonkers.
Edit: As Thunraz points out below, there's a footnote that reads "Numbers after + are successful hits on 'robots.txt' files" and not scientific notation.
Edit 2: After doing more digging, the culprit is a post where I shared a few wallpapers for download. The bots have been downloading these wallpapers over and over, using 100GB of bandwidth usage in the first 12 days of November. That's when my account was suspended for exceeding bandwidth (it's an artificial limit I put on there awhile back and forgot about...) that's also why the 'last visit' for all the bots is November 12th.
but the vast majority of crawlers don't care to do that. That's a very specific implementation for this one problem. I actually did work at a big scraping farm, and if they encounter something like this,they just give up. It's not worth it to them. That's where the "worthiness" check is, you didn't bother to do anything to gain access.