Hreflang Errors: Fixing Broken Language Annotations
Hreflang errors are the mistakes that make language annotations ineffective, and fixing them restores the international targeting you intended.
Hreflang Errors is mistakes in hreflang annotations that stop them from working.
What It Is
Hreflang errors are mistakes in your language or region annotations that prevent search engines from honoring them.
Common examples include missing return tags, invalid codes, and conflicts with canonicals.
An error in one page can break the relationship for the whole set.
Common Types
- Missing reciprocal annotations between versions.
- Invalid or malformed language and region codes.
- Hreflang pointing to pages blocked by robots or noindex.
- Annotated pages missing from the declared set.
- Conflicts between hreflang and the canonical tag.
Why They Matter
- Broken annotations mean the wrong users see the wrong pages.
- Versions may compete or be ignored entirely.
- Search consoles flag hreflang errors for a reason.
- International pages can disappear from their market results.
- Fixing them is usually straightforward once found.
How to Find Them
- Review the hreflang report in Google Search Console.
- Run pages through an hreflang validator.
- Check reciprocity automatically across the whole set.
- Look for URL mismatches and case differences.
- Re-test after every template or CMS change.
Common Mistakes
- Fixing one direction of the annotations only.
- Using full URLs instead of codes in the wrong fields.
- Forgetting region codes where they are needed.
- Assuming the CMS outputs valid hreflang.
- Never validating after a change.
Before: a French page links to its English version, but not the reverse.
After: the team adds the return tag to the English page.
The result: the pair becomes a valid reciprocal set.
The lesson: the annotations work for both directions.
Quick Tip
Treat hreflang as all-or-nothing, because one broken page in a set can disable the targeting for the entire group.
Frequently Asked Questions
Hreflang Errors, in Short
Hreflang errors quietly break international targeting.
Validate reciprocity, check the reports, and fix both directions.
A few minutes of checking saves weeks of wrong-language results.