Alt Text
Alt text describes an image for accessibility and helps search engines understand image content. It’s important for image SEO and semantics.
Definition
Alt text is the `alt` attribute on an `<img>` element. It provides alternative text when images fail to load and improves accessibility for screen readers. It also helps search engines understand what the image represents in context. Good alt text describes meaning, not keywords.
Why it matters
- Improves image search and semantic understanding
- Supports accessibility (a11y)
- Especially important for ecommerce and tutorial visuals
How to implement
- Describe the image meaning in context (one clear sentence)
- Use empty alt (alt='') for decorative images
- Avoid keyword stuffing
Related
Tutorials
Tools
FAQ
Common questions about this term.