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Crawler, Spider, and User Agent ID
10:10 pm May 21, 2026
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Skimbot
tangor
Msg#:4420694
12:10 am on Feb 23, 2012
(gmt 0)
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
Msg#:4420698
12:57 am on Feb 23, 2012
(gmt 0)
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
Msg#:4420702
1:30 am on Feb 23, 2012
(gmt 0)
Space is removed before paren in UA... but this message is a dupe report and should be deleted to avoid dupe threads.
keyplyr
Msg#:4420707
2:02 am on Feb 23, 2012
(gmt 0)
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
Msg#:4420744
4:57 am on Feb 23, 2012
(gmt 0)
Does the UA end in semicolon plus close-parenthesis? ;)
I could have prevented it but it was more fun not to.
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Crawler, Spider, and User Agent ID
10:10 pm May 21, 2026