Add each language/region URL pair. Both x-default and self-reference tags are added automatically.
Hreflang Format
- Language only: "en", "es", "fr"
- Language-region: "en-US", "en-GB", "es-MX", "fr-CA"
- x-default โ fallback for unmatched users (auto-added)
- Each variant page must include the FULL set of hreflang tags
- Self-reference required โ page links to itself too