Quick Reference
Element Code: HR-011
Issue: Hreflang uses invalid language or region codes
Impact: Ignored by search engines
Fix: Use valid ISO language and region codes
Detection: Hreflang validator
What Is This Issue?
Hreflang requires valid ISO 639-1 language codes and ISO 3166-1 region codes.
Why This Matters for Your Website
Invalid codes make hreflang useless.
How to Fix This Issue
- Check codes: Verify against ISO standards
- Fix format: Language-region (en-US not en_US)
Tools for Detection
- Hreflang validator: Validate codes
TL;DR (The Simple Version)
Use valid ISO codes like "en" or "es-MX" with proper hyphen format.
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