User Experience Research
Lang Attribute
The Lang Attribute skill verifies that every HTML document contains a non‑empty, valid BCP 47 language code on the `<html>` opening tag and that any language changes on nested elements are correctly specified. It ensures that child elements inherit the language from the nearest ancestor with a `lang` attribute, maintaining proper multilingual markup. This skill benefits web developers, accessibility auditors, and quality assurance teams who need to guarantee accurate language declarations across complex, multilingual pages.
- Publisher / source
- thedaviddias/Front-End-Checklist (found on GitHub top repositories)
- Upstream record
- thedaviddias/Front-End-Checklist
- Version
- Version 1
- Published
- Publication review
- Approved for publication · recorded passed scan 2026-11-03
- Content fingerprint
4fc71a456632425c4b9cbd52cdbedbe233a7466cf0bfe9077a13d72208bb82e9