Board Thread:Support Requests - Getting Technical/@comment-24155515-20181202235028

Is there a way to figure out which languages are properly linked to your wiki other than prowling the interlanguage request archives or trying every language code and seeing which ones work?

Further, if a wiki is linked but (it appears) no longer exists (and thus should be unlinked, I'd assume), is the interlanguage link requests page the place to ask it be unlinked or should it be done through Special:Contact? I'm presuming it's actually possible to unlink it. 