No lang on html element Web Standard

Description

Consider adding a lang attribute to the html start tag to declare the language of this document.

Help

Add a lang attribute containing a language code to the html element, which allows screen readers to pronounce words correctly.

Applicable standards

• HTML5

Change history

• 6.59 Dec 2025 Added to W3 validator in November 2025.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: W3cHtmlPageLangMissing