I have mostly tested trafilatura on a set of English, German and French web pages I had run into by surfing or during web crawls. There are definitely further web pages and cases in other languages for which the extraction doesn't work so far.

Corresponding bug reports can either be filed as a list in an issue like this one or in the code as XPath expressions in xpaths.py (see BODY_XPATH and COMMENTS_XPATH lists).

Thanks!