hreflang="gd"

gd is a valid hreflang value for Scottish Gaelic.

Language: Scottish Gaelic (gd, ISO 639-1)

Example

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

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

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