Machine-readable semanticsLowWeight 1
Declares the page language
semantics/langWhy this matters
The lang attribute helps an engine decide which language of question your content should be cited in. It matters most on multilingual sites.
How to fix it
Which advice applies depends on what the audit found. The label is the condition that triggers it.
missingDeclare the language on <html>, for example lang="en" or lang="zh-CN".
Check your own page
Run a free audit and see which of these rules your page already passes.
Run a free audit