External links search
Wildcards such as "*.wikipedia.org" may be used.
Needs at least a top-level domain, for example "*.org".
http://, https://, ftp://, irc://, ircs://, gopher://, telnet://, nntp://, worldwind://, mailto:, news:, svn://, git://, mms:// (defaults to http:// if no protocol is specified).
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