AlphaBot

[jonasjacek]

UA: Mozilla/5.0 (compatible; AlphaBot/3.2; +http://alphaseobot.com/bot.html)
Protocol: HTTP/1.1
Robots.txt: No
Host: FDCservers.net
NetRange: 23.237.4.0 - 23.237.5.255
CIDR: 23.237.4.0/23

AdSense and backlink crawler for SEO purposes.
Blocked.

[keyplyr]

SEO Service Under Construction...

Appears they're an upstart.

Thanks, I hadn't seen that UA and didn't have that FDCservers range.