Text Alternatives for Non-Text Content
Meaningful images and icons must have text alternatives available to assistive tools.
European standard for digital accessibility
EN 301 549 is the European standard for digital accessibility. Based on WCAG, it defines the technical requirements for public-sector websites, apps and digital documents.
Free check against the EN 301 549

EN 301 549 defines accessibility requirements for web content, software, and documents. For websites, it is largely based on WCAG Level AA and adds rules for compatibility, documentation, and user support to ensure equal access for people with disabilities.
Meaningful images and icons must have text alternatives available to assistive tools.
All interactive elements must be usable with a keyboard without requiring a mouse.
Prerecorded videos with audio must provide captions for users who cannot hear.
Text and interactive elements must meet minimum contrast ratios for readability.
Content must remain usable when text is resized without loss of information.
Headings and form labels must describe their purpose and structure content clearly.
The default language and any language changes must be programmatically defined.
Input errors must be identified and guidance provided to support correction.
Content must work reliably with screen readers and other assistive software.
Accessibility-related information and instructions must be available in accessible formats.
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