Gentlemen, no matter if in Google search results, or Facebook link previews, links that specifically have the zh-tw part in them http://zh.wikipedia.org/zh-tw/ ... still end up having simplified Chinese, despite no such simplified <title> appearing in the entire page. I suspect somehow the simplified Chinese version is considered Cache Equivalent for <title> purposes ... but it is not and looks horrible to me trying to present a fully Traditional appearing link. Go ahead and test, share "http://zh.wikipedia.org/zh-tw/Gmail" via Facebook, and notice the simplified Chinese there in the title of the link created.