lucy24 - 6:47 am on Sep 19, 2011 (gmt 0)
In your website log, you should see a request from the Trend bot and also a request from the person who's using a Trend AV product.
That was my point. First comes the human. Then, anywhere from a few seconds to an hour and a half later, comes Trendmicro. With other nastiness-checkers I see them in tandem.
And I still haven't figured out the favicon. Why do they need two of them? Why do they need it at all? Surely a quick look at the HEAD would tell them that it hasn't changed since yesterday, and that it's the canonical 318 bytes rather than something suspiciously larger.
:: vague mental picture of entrance to robot headquarters lined with matched pairs of favicons ::