hreflang="rn"

rn is a valid hreflang value for Rundi.

Language: Rundi (rn, ISO 639-1)

Example

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

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

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