How to write good image alt text
Alt text lets screen reader users, and search engines, understand your images.
Why it matters
Blind and low-vision visitors hear alt text instead of seeing the image. Without it they hear a file name, or nothing. Image search relies on it too.
Steps
- Describe what the image shows in a short phrase.
- Skip phrases like "image of".
- For purely decorative images use an empty alt (alt="").
- Make sure every image has an alt attribute.
For your developer
<img src="team.jpg" alt="Our three-person team outside the shop">
Check it worked
Rescan the page. The count of images missing alt text should be zero.
Not sure if this affects your site?
Run a free scan to see exactly which of these your website needs.