Open Graph image alt (Usability)
Image description for accessibility
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Impact
About
The Open Graph image alt tag provides alternative text for the image specified in the Open Graph protocol. This helps improve accessibility for users with visual impairments, as screen readers can describe the image content. Additionally, providing alt text ensures that the content of the image is still conveyed in cases where the image cannot be loaded or viewed, contributing to a better user experience and broader reach.
Why it's important
Provides a description for the image, improving accessibility and helping search engines understand the image content.
User stories
As a site visitor, I want the image shared on social media to have an alt text so that I can understand the content of the image even if I can't see it, especially if I rely on screen readers.
Error
(ScanGov messaging when a site fails a standard)
Open Graph image alt is missing.
Guidance
Indicators
Related
Usability
- Page title
- Page description
- Readability
- Viewport meta tag
- www resolution
- Cumulative Layout Shift (CLS)
- First Contentful Paint (FCP)
- Interaction to Next Paint (INP)
- Largest Contentful Paint (LCP)
- Time to First Byte (TTFB)
- Open Graph site name
- Open Graph type
- Open Graph title
- Open Graph description
- Open Graph URL
- Open Graph image
On Project ScanGov
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