[csoghoian]

The successor to Do Not Track is the Global Privacy Control, which companies are required to respect in several states, including California and Colorado. Support for GPC is already built into Firefox and Brave, but must be enabled in the privacy settings. Users of other browsers can get the benefits of the GPC opt-out using third party extensions like EFF's Privacy Badger.

See: https://globalprivacycontrol.org/