The referrer filter currently has 3 operational modes: (sub)domain, regular expression, regular expression case-insensitive.
As suggested, extend this option to allow a simple keyword filter that excludes a visitor from tracking if any keywords is contained in the provided list.
Extension suggested in the WP support forums (https://wordpress.org/support/topic/blacklisten-bitte-zur-auswahl-stellen/#post-10381313 - German).
The referrer filter currently has 3 operational modes: (sub)domain, regular expression, regular expression case-insensitive.
As suggested, extend this option to allow a simple keyword filter that excludes a visitor from tracking if any keywords is contained in the provided list.