Identifying users

Publishers must:

• not use device fingerprints or locally shared objects (e.g., Flash cookies, Browser Helper Objects, HTML5 local storage) other than HTTP cookies, or user-resettable mobile device identifiers designed for use in advertising. This does not limit the use of IP address for the detection of fraud.
• not pass any information to Google data that Google could use or recognize as personally identifiable information; or that permanently identifies a particular device (such as a mobile phone's unique device identifier if such an identifier cannot be reset).
• not use our services to identify users or facilitate the merging of personally identifiable information with information previously collected as non-personally identifiable information without robust notice of, and the user's prior affirmative (i.e., opt-in) consent to, that identification or merger. Irrespective of users' consent, you must not attempt to disaggregate data that Google reports in aggregate.

  For more information, please refer to Guidance for complying with the Identifying Users Policy.

• comply with the EU user consent policy.