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This collection provides information about the related Acquia Optimize checks.
This section contains useful resources for this subject.
For information about language tags and how to find out the correct tag, visit the external article:
Language tags in HTML and XML
3.1.2 Language of Parts
Related accessibility conformance testing rules.
Element with lang attribute has valid language tag
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Tue Jul 29 2025 22:05:27 GMT+0000 (Coordinated Universal Time)