Hey, I am running a business of generating graphics and sometimes I can send embed code to the bloggers. I have three questions:
- How can I make sure that they will use the link ( element wrapping the image) and not just the image?
- If they use only the image (which will be hosted on my server) - will it count in terms of Backlink?
- While he uses the image with embed code, is alt tag in
going to count as keyword for SEO? how can I optimize that link will include some keywords giving my pump on SERP?
Thanks guys 
Gregory.