Catia - 6:26 am on Feb 3, 2013 (gmt 0)
For everybody out there trying to block Google's hotlinks through htaccess - I just did some experiments and according to my Apache logs, when Google Images loads an image, the referrer is left blank. I don't mean blank as in: "http://www.google.com/blank.html" - I mean blank as in "-".
This sorta says to me that unless you block all blank referrers, which could have some unintended consequences, there isn't any way to intercept those requests.
Am I missing something? Any Apache gurus out there with thoughts?