Identified visitor

Definition
An identified visitor is

{{Quote|a tracked visitor where additional information is available. This is the most common type of visitor when persistent identifiers are employed to monitor usage.

Overview
Rough estimates of the demographics of a user can be made since the entity that owns the domain from which the request was issued can be determined somewhat reliably from InterNIC’s publicly accessible domain registration database. Once the entity have been established, this information can be matched against other databases that enable the construction of user profiles. Of course, the most obvious method of collecting additional demographics of users is by asking the actual users of the site. This is routinely accomplished via online registration forms.