For example, we use IP addresses to track which regions visitors to our Twilio Site or Customers logging into our account portal come from and to detect possible fraud.</p>How We Treat Do Not Track Signals/California Do Not Track Disclosure<p>Various browsers allow a “do not track” (DNT) setting that relies on a technology known as a DNT header, which sends a signal to websites visited by the individual about the individual’s browser DNT setting.