Forum Moderators: open
The original user agent for all requests was:
Mozilla/4.0+(compatible;+MSIE+6.0;+America+Online+Browser+1.1;+Windows+NT+5.1;+{A95FC160-E6BB-8534-E015-367923AB513F})
When it grabbed the favicon.ico from each of my sites it switched to the OCP HRS 1.0 user agent. So I suspect it's an image bot of some kind. A search didn't turn up anything meaningful other than it's in a lot of people's log files.