hreflang="dz"

dz is a valid hreflang value for Dzongkha.

Language: Dzongkha (dz, ISO 639-1)

Example

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

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

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