QUESTION: Is it possible to have custom footprints? You provide Joomla, Drupal, and some others, is it possible to make a custom one?
No, this is not possible. The reason for this is that CMS detectors know to look for specific headers in order to detect which CMS a site is using (which we add to simulate Joomla and Drupal).
It’s NOT possible to make a detector show a Custom generator if it doesn’t already exists in its database.