| polski | pol-000 |
| Web Accessibility Initiative | |
| Deutsch | deu-000 | Web Accessibility Initiative |
| English | eng-000 | Web Accessibility Initiative |
| euskara | eus-000 | Web Accessibility Initiative |
| français | fra-000 | Web Accessibility Initiative |
| Nederlands | nld-000 | Web Accessibility Initiative |
| español | spa-000 | Web Accessibility Initiative |
| svenska | swe-000 | WAI |