hreflang="st"

st is a valid hreflang value for Southern Sotho.

Language: Southern Sotho (st, ISO 639-1)

Example

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

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

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