Element Code: IN-052
Quick Reference
Issue: No language declaration
Impact: Language unknown
Fix: Add lang attribute
Detection: HTML check
What Is This Issue?
Lang attribute declares language.
Why This Matters
Helps accessibility and SEO.
How to Fix
- Add lang to html
Tools
- HTML check: Lang
TL;DR
Add lang attribute.
Claude Vincent is a technical SEO consultant focused on crawlability, rendering, and AI-search visibility. He writes the field guides and case studies at SEO ProCheck, with a bias toward the durable, unglamorous work that decides whether search engines and AI answer engines can actually read and cite a site.
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