nicebot

I could not find who owns this bot. nicebot does not send any contact info in the HTTP headers. It comes from the following IP addresses:

serverpronto.com addresses:
64.251.30.20
64.251.30.21
64.251.30.23
64.251.30.26

infolink.com addresses:
69.60.120.166
69.60.120.167
69.60.120.172
69.60.120.174
69.60.120.176

It seems nicebot supports HTTP compression and it does request robots.txt. I did not have a chance to test whether it follow robots.txt instructions as I banned the IP addresses listed above.