indyank - 5:47 am on Aug 23, 2012 (gmt 0) [edited by: indyank at 6:35 am (utc) on Aug 23, 2012]
I would like to add that there is something terrible going on with Images where they wrongly credit them to scraper sites. The scenario is like this:
1) You have images in those separate image attachment pages. You have the .htaccess restriction in place for all sites except the ones you desire like google.
2) Someone else and in this case a blogspot blog is scraping the entire set of images and displaying them on their blog by directly linking to those images thro. src attributes for img tags. They don't even credit back by linking back to those image attachment pages or the direct images using href. Google displays these scraper sites as the source for those images.
Coming back to what is in discussion, Google does have a separate "noimageindex" robots meta tag to tell Google images bot that the image attachment page should not be indexed as a reference page. See this - [support.google.com...]
But i am not sure why Google ignores indexing images when you simply add "noindex" and not "noimageindex". Are you sure that is the reason or is it that you have blocked images for others (except Google) using .htaccess. Can you two pls. confirm?
[edited by: indyank at 6:35 am (utc) on Aug 23, 2012]