hreflang="cv"

cv is a valid hreflang value for Chuvash.

Language: Chuvash (cv, ISO 639-1)

Example

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

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

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