Django has the [sites framework](http://docs.djangoproject.com/en/1.11/ref/contrib/sites/#ref-contrib-sites) to support multiple web site hosting from a single Django installation. 

EDIT (below is an incorrect assumption of the system)

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I understand that middleware sets the settings.SITE\_ID value based on a lookup/cache of the request domain.

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ENDEDIT

But when testing locally, I'm at <http://127.0.0.1:8000/>, not <http://my-actual-domain.com/>

How do I locally view my different sites during development?