seo-hreflang

Hreflang validation checks for missing self-referencing alternates, verifies full bidirectional return tag meshes, confirms x-default fallback placement, and flags ISO code or URL mismatches to ensure search engines correctly map international content.

Correct hreflang code format uses ISO 639-1 language codes and ISO 3166-1 Alpha-2 region codes. Strict validation checks these formats alongside protocol consistency and trailing-slash alignment to prevent international SEO targeting failures.

Generate hreflang XML sitemap entries by producing ready-to-use xhtml:link blocks. The Skill outputs implementation-ready snippets for XML sitemaps, HTML link tags, and HTTP Link headers, ensuring correct multi-language URL alternates.

Hreflang return tags fail validation when bidirectional relationships are incomplete, meaning alternate URLs do not link back to each other. Missing return tags break the full mesh required for search engines to confidently map language and region alternatives.

Hreflang tags must appear only on canonical URLs. Validation enforces strict canonical alignment, verifying protocol consistency such as HTTP versus HTTPS and trailing-slash uniformity, ensuring search engines correctly parse international alternate URLs.

Set an x-default fallback by validating its correct placement within your hreflang tag sets for multi-region sites. This catches missing or incorrect fallbacks, ensuring search engines route unmatched language or region visitors to the correct default page.