Cloudflare Challenges can detect multiple languages and display the localized challenge experience, which is determined by navigator.language value. The Navigator.language read-only property ↗ returns a string representing the preferred language of the user, usually the language of the browser user interface.
For language support specific to Challenge Pages, refer to the table below.
| Language | Language code (4 letters) |
Language code (2 letters) |
|---|---|---|
| Arabic (Egypt) | ar-eg |
ar |
| Chinese (Simplified, China) | zh-cn |
zh |
| Chinese (Traditional, Taiwan) | zh-tw |
-- |
| Dutch (Netherlands) | nl-nl |
nl |
| English (United States) | en-us |
en |
| French (France) | fr-fr |
fr |
| German (Germany) | de-de |
de |
| Indonesian (Indonesia) | id-id |
id |
| Italian (Italy) | it-it |
it |
| Japanese (Japan) | ja-jp |
ja |
| Korean (Korea) | ko-kr |
ko |
| Persian | -- | fa |
| Polish (Poland) | pl-pl |
pl |
| Portuguese (Brazil) | pt-br |
pt |
| Russian (Russia) | ru-ru |
ru |
| Spanish (Spain) | es-es |
es |
| Turkish (Turkey) | tr-tr |
tr |
For language support specific to Turnstile, refer to the Turnstile documentation.