WordPress fix guide
Hreflang Syntax Invalid on WordPress
Hreflang tags are present but contain syntax errors such as invalid language codes or malformed URLs.
Issue ID: TECH-HREFLANG-SYNTAX-001Severity: minorEffort: S
Why this matters
Hreflang tags are present but contain syntax errors such as invalid language codes or malformed URLs. This affects crawlability, rendering, and whether the site can be interpreted correctly by search engines.
WordPress fix path
How to fix this on WordPress
These are usually theme-level fixes.
- 1Check your active theme or page builder output.
- 2Update the relevant setting or theme template.
- 3Clear caches and confirm the rendered HTML changed.
After you fix it
- ✓Validate hreflang tags using a hreflang checker tool
Same fix, other platforms
Fix hreflang syntax invalid on a different CMS
Other fixes
More WordPress fixes
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