hreflang="os"

os is a valid hreflang value for Ossetian.

Language: Ossetian (os, ISO 639-1)

Example

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

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

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