I've been trying to get certain images from a website (a lot of them actually) to be indexed with Google. The pages containing the images are getting indexed, but I do not see evidence that the main pictures are anywhere in Google images If I enter site:mysite.com/page_url_path, is that not the definitive way to determine what images associated with the page have been indexed? So, if they are not in fact getting indexed, then what factors might cause them to not show up? "Fetch with Google" in webmaster tools shows that the scraper is getting a page that has the appropriate "img" tag with the correct URL in the source. The images are all hosted remotely with Cloudfront.
I appreciate any help or insight anyone could provide on this issue!
UPDATE: What is the reliable way to determine if an image has been indexed if it is not hosted on the site?