Hreflang Validator
Validate hreflang tags for bidirectional return links, valid ISO 639-1 language codes, and formatting.
Valid ISO 639-1 language codes (en, es, fr) paired with ISO 3166-1 country codes. Includes fallback x-default declaration.
How to Use Hreflang Validator
Paste your set of hreflang tags.
Run validation to check ISO code accuracy and syntax.
Verify that bidirectional reciprocal links exist between all regional alternates.
Frequently Asked Questions
Q.What is a missing return tag error in hreflang?
If page A links to page B as an alternate, page B MUST link back to page A. If it doesn't, Google ignores the hreflang annotation.
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