Skimbot

[tangor]

50.18.84.nnn
SkimBot/1.0 (www.skimlinks . com <dev@skimlinks . com>)
Robots: YES
Note: spaces added fore and aft to break url link

[Pfui]

Is the unobfuscated IP one of amazonaws.com's?

See also a few additional UA variations here:

Amazon AWS Hosts Bad Bots [webmasterworld.com...]

For example (seen last week); space before paren is in the original UA:

ec2-46-137-146-175.eu-west-1.compute.amazonaws.com
SkimBot/1.0 (www.skimlinks.com )

robots.txt? Yes

[tangor]

Space is removed before paren in UA... but this message is a dupe report and should be deleted to avoid dupe threads.

[keyplyr]

Is the unobfuscated IP one of amazonaws.com's?

Looks that way...

Amazon EC2
50.16.0.0 - 50.19.255.255
50.16.0.0/14

[lucy24]

Does the UA end in semicolon plus close-parenthesis? ;)

I could have prevented it but it was more fun not to.