A new entry in the ROFLMAO category:
IP: 191.239.53.abc
robots.txt: no
headers: humanoid
UA: Mozilla/5.0 (compatible; Atomseobot/2.0; +http://https://error404.atomseo.com/)
Really.
I have just seen this robot for the first time. The IP, which I've also never seen before, is--or claims to be--Microsoft Brazil.
More stuff: Although I'd never seen the robot before, I
have seen the request-and-referer combination--from a blocked robot (due to no UA) from an entirely different IP. I've never seen the referer in a human request, but it looked absolutely plausible, so I took a chance and investigated. Yup, it’s got a link to the requested page.
As a final drollity, the referer includes the element /mapsandsources/sources/online-soures/ which, it turns out, is not a robotic blunder. The site really does misspell it, after getting it right two times in a row. (I know the feeling. Is it really worth fixing-and-redirecting when nobody looks at the URL anyway?)
