sites.models.Site

class models.Site

A model for storing the domain and name attributes of a website.

domain

The fully qualified domain name associated with the website. For example, www.example.com.

Changed in Django 1.9:

The domain field was set to be unique.

name

A human-readable “verbose” name for the website.

The SITE_ID setting specifies the database ID of the Site object associated with that particular settings file. If the setting is omitted, the get_current_site() function will try to get the current site by comparing the domain with the host name from the request.get_host() method.

How you use this is up to you, but Django uses it in a couple of ways automatically via simple conventions.