People might not want images from their websites to be indexed in online searches for several reasons.
- To protect their intellectual property or copyrighted images from being copied or used without permission
- To reduce the usage of the website (bandwidth) by people finding and using images
- To help protect the privacy of those included in images
I have no problem with images from this blog appearing in search engines but recently wanted to add some protection against usage/indexing for another site.
I did some thinking and research here. Search engines have some help pages for their indexing such as Google, but each each search engines help pages only talk about their own search. In reality you probably want to use User-agent: *
So here are some easy to copy and paste chunks that you could look at using…