By specifying the default language of the web page like <html lang="en"> by specifying HTML lang, the user agent and assistive technology can interpret the contents correctly.
When constructing a multilingual site, it is important to forget about this, so please be aware that even Japanese pages may be "en".
Also, when multiple languages are mixed within a single page, it is strongly recommended that consideration is also given to Success Criterion 3.1.2.
| Principle | Understandable | Information and the operation of user interface must be understandable. |
|---|---|---|
| Guideline | Readable | Make text content readable and understandable. |
| Criterion | Language of Page (3.1.1 A) |
Interpretation by program can be made as to which language the default natural language of each web page is. |