"We collect information from the device you use to access our website, your operating system type, browser type, domain, and other system settings, as well as the language your system uses and the country and time zone where your device is located. We may also collect information about the website you were visiting before you came to ADP and the website you visit after you leave our site."
ADP collects broad device information including OS type, browser type, system settings, IP address, and referrer/exit URLs, much of which goes beyond what's needed for core HCM functionality.