cPanel and WHM version 11.32 has a feature where the users can select a locale in a session. A localised login page has been implemented to facilitate this. There are several determining factors based on which the locale is selected. While logging in to cPanel, WHM, or Webmail, a service scans through the system checking whether it meets the recommended specifications.
After you have logged in to the cPanel, WHM, or Webmail interface, the locale will be determined by the cpsrvd service by running certain checks:
Say the URL is : https://example.com:2083/login?locale=ru.
Here ru denotes the language. The locale selected in the cPanel interface will therefore be Russian.
The session_locale cookie is set to the same value if a locale query string parameter exists in the URL.
Please note that the Accept- Language header is not supported by all browsers. Although you shouldn’t be having a problem if the browser you are using is an updated one.
This setting is located within the /var/cpanel/cpanel.config file as a variable of the service_locale file.
cPanel and WHM has a set of established guidelines based on which a particular browser locale is set. Using the steps outlined above you can easily tweak the browser locale as per your needs and requirements.