hreflang="gv"

gv is a valid hreflang value for Manx.

Language: Manx (gv, ISO 639-1)

Example

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

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

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