How to fix html lang valid on Wix Studio
Set a valid BCP 47 language code on the `lang` attribute of your page's `<html>` element (e.g., `lang="en"`) so browsers, screen readers, and search engines correctly identify the page language.
Steps for Wix Studio
- In Wix Studio, the `lang` attribute is controlled by the site's language settings, not directly editable in the canvas.
- Open your site in Wix Studio → click the Site Settings (gear icon) → Language & Region, and confirm the primary language is set correctly.
- For multilingual sites, use the Wix Multilingual panel to ensure each language has a valid locale assigned.
- Publish the site and verify via page source. If the attribute is still invalid, escalate to Wix Studio support.
<html lang="en">
<!-- Use your correct BCP 47 code: en, en-US, fr, de, es, ja, zh-Hans, etc. -->What is html lang valid?
Every HTML page has a root `<html>` tag, and that tag should carry a `lang` attribute that tells technology what human language the page is written in — for example, `lang="en"` for English, `lang="fr"` for French, or `lang="de"` for German. The value must be a recognised BCP 47 language tag (e.g. `en`, `en-US`, `fr`, `es-419`). A missing or invalid value — like a typo, an empty string, or a made-up code — triggers this issue. WCAG Success Criterion 3.1.1 (Level A) requires that the language of every page be programmatically determinable.
Screen readers use the `lang` attribute to select the correct voice engine, pronunciation rules, and text-to-speech language for your content — an invalid or missing value causes the reader to either guess or speak your content in the wrong language, making your store inaccessible to blind and low-vision customers. This is a WCAG Level A violation (the most basic level), which means it exposes your business to accessibility-related legal risk in many jurisdictions including the US (ADA), EU (EAA 2025), and UK (Equality Act). Search engines also use the declared language to surface pages in the right regional results, so an invalid `lang` can silently reduce your international organic traffic. Fixing it is a quick win that immediately improves accessibility compliance, user experience, and discoverability.
See the complete Html lang valid guide for every platform and the full background.
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