Unless the image files are the same, no image should contain redundant alt text

Severity code: Severe error

Every distinct image on a page should have it’s own <em>alt</em> text which is different than all the others on the page to avoid redundancy and confusion.

Example

Wrong

<img src=&quot;rex.jpg&quot; alt=&quot;this is an image of rex&quot;><img src=&quot;me.jpg&quot; alt=&quot;this is an image of rex&quot;>