What does “Set the HTML language” fix?

lang on tells browsers and crawlers the language of the page.

How long does this usually take?

About 5 minutes on most CMS and code stacks when you already have access to edit the page.

Start with: Set lang on the element to match the visible text (en, de, es, …). Then use the platform picker on this page for placement notes.

Unos 5 minÚltima actualización: 25 ago 2026

lang on <html> tells browsers and crawlers the language of the page. Follow the steps below on your stack, then re-check the live URL.

lang on <html> tells browsers and crawlers the language of the page.

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Time	~5 min
Category	SEO
Steps	2
Stacks	WordPress, Shopify, Webflow, Next.js, HTML, more

Add lang="en" (or de, es, …) on the <html> element.

Snippet

<html lang="en">

What does “Set the HTML language” fix?: lang on <html> tells browsers and crawlers the language of the page.
How long does this usually take?: About 5 minutes on most CMS and code stacks when you already have access to edit the page.
Where do I start?: Start with: Set lang on the <html> element to match the visible text (en, de, es, …). Then use the platform picker on this page for placement notes.