Set the lang attribute on <html> — Lovable
Missing lang attribute means screen readers use the wrong pronunciation and Google may serve your page to the wrong language market.
Fixing this in Lovable
AI full-stack app builder (React + Vite + Supabase)
Lovable apps ship fast but skip most SEO and security basics out of the box. Paste the prompt below into your Lovable chat and the fix rolls out across the project in one pass.
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The prompt for Lovable
Copy and paste this into your Lovable chat exactly as-is.
Fix my Lovable app — please make these exact changes in the Lovable editor: Add lang attribute to HTML 1. Add lang="en" (or the correct language) to the <html> tag.
Why this matters
The lang attribute tells browsers, screen readers, and search engines which language the page is in. Without it, screen readers use the OS default (often wrong), and Google may misidentify the target market.
For multilingual sites, set lang correctly on each locale and use hreflang tags for alternates. This is how Google decides which version to serve for German-speaking users vs. English-speaking.
How to use this prompt in Lovable
- 1. Open your Lovable project.
- 2. Copy the prompt above with the copy button.
- 3. Paste into the Lovable chat and send.
- 4. Review the diff, accept the changes, redeploy.
- 5. Verify the fix using the checklist below.
Common mistakes to avoid
- error_outlineLeaving the default `lang="en"` on a German site — Google serves English users.
- error_outlineForgetting to update lang when adding i18n support.
- error_outlineUsing `lang="en-US"` for a global English site — en-US is fine, but `en` is enough.
How to verify the fix worked
- check_circleView source — `<html lang="...">` matches your content language.
- check_circleLighthouse Accessibility → "HTML has a lang attribute" passes.
- check_circleGoogle Search Console → International Targeting report — matches your intent.
Frequently asked questions
Should I use en or en-US?expand_more
How do I handle multilingual pages?expand_more
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