Images must have alternate text
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All images must have alternate text to convey their purpose and meaning to screen reader users.
The Algorithm, in Simple Terms
Ensures that every
<img> element has alternative text,
role="none" (ARIA 1.1).
Why this is Important
Screen readers have no way of translating an image into words that gets read to the user, even if the image only consists of text. As a result, it's necessary for images to have short, descriptive
alt text so screen reader users clearly understand the image's contents and purpose.
How to Fix the Problem
Ensure all informative
<img> elements have short, descriptive alternate text and all decorative
<img> elements have empty alt attributes (e.g.
- HTML 4