View source for Browser Privacy and Opt-Out

== Privacy and Opt-Out ==
There are two primary methods for implementing user Opt-out preferences:
# [[#User Opt Out|User Opt Out]] - Provide a link to the Nielsen Privacy Policy page when a User can make their selection
# [[#Initialization Opt Out|Initialization Opt Out]] - Global OptOut Parameter

=== User Opt Out === 
The site must provide a means for the user to opt-out of, or opt back into, Nielsen Measurement. A user can opt-out if they would prefer not to participate in any Nielsen online measurement research. To implement the User Opt-Out option, include the following two items in your privacy policy.
*A notice that the player (or page in relation to static measurement) includes proprietary measurement software that allows users to contribute to market research (such as Nielsen TV Ratings).
*A link to the Nielsen Digital Measurement Privacy Policy at https://www.nielsen.com/digitalprivacy

On the Nielsen Digital Measurement Privacy Policy page, users can click Choices to read more detailed information about the measurement software, learn about their options with regard to Nielsen measurement, and, if they do not want to participate in Nielsen online measurement, click a link to receive an opt-out cookie.
<br />
* Once users have opted out via this [http://server-us.imrworldwide.com/cgi-bin/o?oo=total&tu=https://sites.nielsen.com/legal/policy/en/cookie-policy/  link], their browser cookies will contain the value '''TOTAL_OPTOUT'''. This will prevent a redirect to our data provider from occurring
* Users can opt back in via this [http://server-us.imrworldwide.com/cgi-bin/o?oo=cancel&tu=https://sites.nielsen.com/legal/policy/en/cookie-policy/ link].  When a user selects that link, their opt-out cookie will be deleted and they will be able to be measured moving forward.
<br>
The following paragraph is a template for a Privacy Statement.
<blockquote>
The properties may feature Nielsen proprietary measurement software, which will allow users to contribute to market research, such as Nielsen TV Ratings. To learn more about the information that Nielsen software may collect and your choices with regard to it, please see the Nielsen Digital Measurement Privacy Policy at https://www.nielsen.com/digitalprivacy
</blockquote>

==== User Opt Back In ====
Once users have opted-out, they can choose to opt back into Nielsen Measurement at anytime by selecting the opt back in link on the Nielsen Digital Privacy Policy page. When a user selects the link, their opt-out cookie will be deleted and they will be able to be measured.

=== Initialization Opt Out ===
The BSDK600 now supports the ability to optout on initialization of the SDK by allowing an optout global parameter to be passed.  This optout will be maintained through the session of the SDK instance. Specifications and limitations are specified below.

{| class="wikitable"
|-
! Type
! Supported Values
! Notes
! Optout
|-
||optout||True, Yes, or 1|| Case is insensitive and can be string or bool
Example: nlsQ("XXXXXXXX-BH45-JKY6-BKH7-67GJKY68GJK7", "myInstance", { optout: true});
|| Ping parameter will set uoo=true.
|-
||optout|| False, No, or 0 || Case is insensitive and can be string or bool
Example: nlsQ("XXXXXXXX-BH45-JKY6-BKH7-67GJKY68GJK7", "myInstance", { optout: false});
|| Ping parameter will set uoo to blank.
|-
|}
==== Example of using OptOut ====

<syntaxhighlight lang="javascript">
var nSdkInstance = NOLBUNDLE.nlsQ("XXXXXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXX", "nlsnInstance", {
  nol_sdkDebug: "debug",
  optout: "true"
});
</syntaxhighlight>
=== Opt Out Overview ===
{| class="wikitable"
|-
! Browser Cookie
! uoo value in session ping
! Final Optout Status
|-
||Default Value || no uoo value or uoo=0 || Not Opted Out
|-
||Default Value || uoo=1 || Opted Out
|-
||TOTAL_OPTOUT || uoo=0 || Opted Out
|-
||TOTAL_OPTOUT || uoo=1 || Opted Out
|-
|}