<html> element must have a valid value for the lang attribute
What is the problem?
The html-lang-valid accessibility rule ensures that the lang attribute of the <html> element has a valid language code.
Impacted Groups
Why is this important?
A valid language code helps screen readers and other assistive technologies to correctly pronounce text and translate content. It also aids search engines in indexing content appropriately. Without a valid language code, users may encounter difficulties understanding the content, especially those who rely on assistive technologies.
How to solve this issue
To fix this issue, set the lang attribute of the <html> element to a valid language code, such as en for English or fr for French. This will ensure that assistive technologies can properly process and present the content to users.
Rule Information
Rule ID
html-lang-valid
Severity
Manual Review Required
Rule Group
WCAG 2.0 Level A & AA Rules
Guidelines
- WCAG 2.1 (A)
- WCAG 2.0 (A)
- WCAG 2.2 (A)
- Trusted Tester
- EN 301 549
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