foo://example.com:8042/over/there?name=ferret#nose
urn:example:animal:ferret:nose
http://example.net:1234/my/path/here.html
http://example.com:80/foo
http://nobody:nothing@127.0.0.1:8080/dot/slash/dot?foo=bar;x=y
https://secure.example.org/
gopher://retro.example.org/
ftp://pics.example.org/
http://example.org/photos/
http://sussex.ac.uk/sexy/substrings/
HTTP://example.caps.example.org/
htTp://mixedCase.example.com/
mailto://http.example.com?Subject=Non-HTTP
http://pics.example.com/
http://www.pics.example.com/
http://pics.metadata.example.com/