What is alt text?
Alt text is a written description of an image, read by screen readers and used by search engines.
Definition
It is set in the image's alt attribute. Decorative images should have empty alt text so screen readers skip them.
Why it matters
It makes images accessible to people who cannot see them and helps search engines understand them.
How to get it right
- Describe what matters in the image.
- Keep it concise.
- Use empty alt for purely decorative images.
- Include context, not 'image of'.
Mistakes to avoid
- Missing alt on meaningful images
- Keyword stuffing
- Repeating nearby text word for word
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What is alt text?
Alt text is a written description of an image, read by screen readers and used by search engines. It is set in the image's alt attribute. Decorative images should have empty alt text so screen readers skip them.
Why does Alt text matter?
It makes images accessible to people who cannot see them and helps search engines understand them.
How do you get alt text right?
Describe what matters in the image. Keep it concise. Use empty alt for purely decorative images. Include context, not 'image of'.
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