What are the available data?

Every check uses the site var, which is in fact an instance of the Site object.

The Site object is defined inside views.py.

This object is created directly after the content of the page is downloaded, and contains multiple data:

Var	Description
settings	Contains all of the settings that are defined in django-check-seo/conf/settings.py. Tip: you can update the values by creating a DJANGO_CHECK_SEO_SETTINGS dict in your project/settings.py file, like we used to do.
soup	bs4.BeautifulSoup object, the content of the page you're analyzing (all the html).
content	list of bs4.element.Tag. You can iterate over it and look at the content of the website (source). It contains all of the blocks who have the container class (since django cms seems to put all the content in elements with container classes).
soup	bd4.BeautifulSoup object, the content of the page you're analyzing (all the html).
soup	bd4.BeautifulSoup object, the content of the page you're analyzing (all the html).
soup	bd4.BeautifulSoup object, the content of the page you're analyzing (all the html).
soup	bd4.BeautifulSoup object, the content of the page you're analyzing (all the html).