For a multilingual website is it better (in terms of income) to have an ad that serves each language or only one ad that serves all languages?
I know that Google adsense knows how to get the language of the page, and this question is not about that it's about the organisation of the ads. All ads are responsive.
Trying to rephrase the question, if I have one ad for all languages it will have more views does it make it more interesting for advertisers?