User Agent: Mozilla/5.0 (compatible; IPTCBOT; IP Address: 18.104.22.168 Host: 1.onlinehome-server.info
This bot first arrived at my site on Fri Aug 5th, 2011 at 09:04PM. It is sending referrers most of which look spammy though the last few link to valerie-bistro.de/robot.html?=example.com (my domain instead).
Doing a search for "IPTCBOT" (without quotes) a Twitter account comes up with the following description...
Unofficial bot that publishes things that might be about the IPTC, by @smyles
That account doesn't seem related to the main page linked in the referrer. It's been rejected by my site and will continue to however I am curious if anyone could find something a bit more solid on this?
If have seen it a few times but I have no better idea of what it's about than you do. They seem to have changed their UA lately. Sunday it dropped by in the same way you described with my site name as example.com, before that they used :
onlinehome-server.info is hosted on : inetnum: 22.214.171.124 - 126.96.36.199 netname: SCHLUND-CUSTOMERS descr: 1&1 Internet AG country: DE
188.8.131.52 is hosted on : inetnum: 184.108.40.206 - 220.127.116.11 netname: SCHLUND-CUSTOMERS descr: 1&1 Internet AG country: DE
SCHLUND has been host to many unsavouries for many years. Usually, when I see a bot come from there (with whatever UA) its range gets blocked. The whole is pretty much the same environment as the likes of SoftLayer, etc.