I'm looking for the SEO way to tell Google not to download pictures.I have a script that generates one of two things based on who accesses the site:If an unauthorized robot accesses the site, they will receive a message that they should visit the website first.Users on the other hand who have seen the site first will cause the script to generate the picture for them.I already have this header:X-Robots-Tag: noindex, noimageindexBut I'm not too sure what status code I should hand to robots (who receive the message instead of the picture). Right now, I set it to 200 to denote a valid page. I was thinking of setting it to 401, but I don't know if that's correct in this case.
How to properly tell Google they have no right to access the download. What status do I use?
google;images;http;filtering;index