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WCAG 2.1

3.1.1 Language of Page

Level A success criterion

The default human language of each page must be programmatically identified.

Why it matters

Screen readers need the correct language to pronounce content accurately.

Common violations

  • Missing lang attribute on html
  • Incorrect language code
  • Language not updated for localized pages

Code examples

Bad

<html>

Good

<html lang="en">

How to fix

Set the correct lang attribute on the html element for every page.

Related criteria

3.1.2 Language of Parts2.4.2 Page Titled4.1.1 Parsing

Related resources

IRS.gov accessibility scoreSocial Security Administration accessibility scoreUSPS accessibility scoreWordPress accessibility guideShopify accessibility guideSquarespace accessibility guide

Test & fix this criterion

Use these free tools and guides to check and fix 3.1.1 Language of Page violations:

Free accessibility checker — find WCAG violations automaticallyColor contrast checker — test contrast ratiosHow to fix common WCAG failuresTop 10 most common WCAG failures

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