fr), with the language set to French (fr-fr). You can override this so that the hosted landing page displays in another language of your choosing by doing as follows:
fr-fr to en-us you override the language from French (fr-fr) to US English (en-us).
A long code for the language you want your landing page to display in should be used as the value for this segment of the URL. A full list of supported languages and their corresponding long codes can be found here.
INFOOnly copy that is part of the application will be translated into the overridden language. Any copy you have provided for your offer(s) (e.g. Offer Title, T&Cs etc) will remain as you have provided them to us.