Here is an example of a full address and what policy triggers can be used to check against it

http://www.bluecoat.com:81/path.path_path/demo_file.html?sess=1234

http is the scheme (url.scheme)

bluecoat.com is the domain (url.domain)

www.bluecoat.com is the address (url.address)

81 is the port (url.port)

path.path_path/demo_file.html?sess=1234 is the path (url.path)

.html is the extension (url.extension)

sess=1234 is the query (url.query)

http://www.bluecoat.com:81/path.path_path/demo_file.html?sess=1234 is the whole path (url.path)