hreflang="za"

za is a valid hreflang value for Zhuang.

Language: Zhuang (za, ISO 639-1)

Example

<link rel="alternate" hreflang="za" href="https://example.com/za/" />

The code is case-insensitive for Google. The conventional spelling is a lowercase language, a title-case script and an uppercase region: za.

Without a region, the annotation targets every Zhuang speaker regardless of country. Regional versions sit next to the language-only version in one cluster.