What things need to be considered for a Website that contains International strings, for instance Simplified Chinese and English mixed.UTF8 seems to me a natural choice, including a meta tag.  Still, some users may only see white boxes.  What is the best solution do deal with this?Currently I am thinking to provide an alternative image-based rendering, or even make it default.  But IMHO this seems a weak solution.  Or I could tell the user which OS/Browser combinations are known to work but such a list would probably be endless.Update: it's a Chinese learning site, most users will not have visited Chinese websites before
Strategy for website with international strings
internationalization;unicode
The white boxes are not dependent on the OS/browser combination, but rather on the fonts that the end-user has installed on his/her system.With that in mind, there are several options:If the normal visitors to the site are expected to be able to read the non-English-alphabet texts, then I would not worry too much. You can expect them to have the appropriate fonts installed. For the few who don't, you could add a hint to which languages are used and which additional fonts might be needed.If the non-English text comes from contributions by other users (such as comments or forum messages), there isn't much you can do anyway as it is impractical to support all alphabets supported by Unicode.You could offer a fully translated version of the site.update: Given the update in the question: For a Chinese-teaching website, I would have a page that allows students to test if they have the correct fonts and directions how to obtain and install any missing fonts.