What is the "Invalid hreflang code" check?

P2 · MediumSEO

Invalid hreflang code

Hreflang uses invalid language code

Code: hreflang_invalid_language

Why it matters

Hreflang uses invalid language code. Search engines use this signal when crawling and ranking pages. Getting it wrong can suppress visibility in results or lead to missed indexing opportunities.

Related checks in SEO

Missing page title

Page has no <title> tag

Title too short

Title is under 30 characters

Title too long

Title exceeds 60 characters

Missing meta description

No meta description found

Meta description too short

Description under 70 characters

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