This is a Build Radiator for Hudson. Its job is to tell everyone in the room if your build is broken. This one runs inside a browser, so if you can reach this url (and you use Hudson), you can use it immediately. By default this service tries to connect to a Hudson instance running on hudson:8080. You can pass four parameters on the url to control it:
Example: http://xfd.build-doctor.com?port=80&host=hudson
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