Board Thread:Support Requests - Getting Technical/@comment-3513410-20170726102153

By that, I mean stuff such as the shortlinks to legacy wikis such as disney:name (equivalent to w:c:disney:name which in turn is equivalent to which is equivalent to ), or to external resources such as name (equivalent to  or imdb:name (equivalent to [http:/www.imdb.com/namespace/name]).

I wanted to check whether isbn: is valid; where do I look for the list?  