Best use of keywords in images?
I'm tidying up my sites at the moment, and in particular, making sure my images are SEO optimized.
I've heard that it's a good idea to use your target keyword for your image alt text.
My question is: how many images should you use your keyword for in the alt text?
For example, if you have four images in a post, should the alt text be the same thing, or should you only do it for the featured image?
Thanking you in advance for your advice and thoughts.