Improve accessibility and discoverability with effective alt text and structure.
What to do
Describe information the image contributes instead of stuffing keywords into alt text. Keep essential written information accessible and provide captions or transcripts for meaningful speech. Review contrast and reading order too.
Practical example
An opening-hours chart has a description listing its days and times so readers do not need to interpret colored bars.
Check your result
Check available accessibility controls and whether the description conveys what a reader needs without seeing the image.