User Choice Portal
Last Updated: July 1, 2025
Table of Contents:
- Opt out & Do Not Sell/Share My Personal Information
- How to Request Access, Correction, or Deletion
- How to find your Device Identifier
OPT OUT OF TARGETED ADVERTISING, “SALES,” “SHARING” & USE OF SENSITIVE INFORMATION
Some activities explained in our Advertising Platform Privacy Policy, including Magnite’s disclosure and use of User Information and our clients’ use of our technology to buy and sell advertising inventory may constitute a “sale,” “share,” “targeted advertising” as defined under applicable laws. In addition, some of our activities may involve use of sensitive personal information in a manner that requires that we provide you the right to limit or opt out of such use under applicable law. If you wish to opt out from having Magnite using your User Information for these purposes, please follow the instructions below.
Because devices use different identifiers, opt-outs must be performed separately on each browser and each device.
Further, in some countries, our Clients are required to obtain your consent before they use our advertising technologies to process personal information for targeted advertising. If you have consented and now wish to change your mind, you can opt out by using our opt out tool below. If processing is based on legitimate interest, you may also object to that processing using the same tool.
Web Browsers
If you would like to opt out of targeted advertising by Magnite on this browser, click the box below and then click “OK”:
You can also opt out by visiting this User Choice Portal or the pages of our Client’s websites with a legally-recognized global preference signal, such as the GPC, enabled.
When you opt out on your browser, we will place a cookie on your device that records your choice. If you change browsers or devices, or delete the cookies on your device, you will need to opt out again.
Magnite adheres to the European Digital Advertising Alliance’s (“EDAA”) Self-Regulatory Principles. Users located in the UK and the European Union, can opt out of targeted advertising by companies that adhere to the EDAA Self-Regulatory Principles, including Magnite, by visiting the EDAA’s opt-out page at http://www.youronlinechoices.eu.
Mobile
Your mobile device may give you the ability to opt out of apps using and disclosing information about you for targeted advertising purposes. For more information on how to change your preferences, please see https://thenai.org/opt-out/mobile-opt-out/
Connected Televisions
Your Internet connected television (e.g., a smart TV or device that allows you to stream video programing) may give you the ability to opt out of targeted ads. To determine if your Internet connected television has these options, please visit your device’s settings menu. For more information on how to change your preferences, based on device type please see https://thenai.org/opt-out/connected-tv-choices/.
HOW TO REQUEST ACCESS, CORRECTION, OR DELETION OF PERSONAL INFORMATION
Depending upon where you reside, you may have the right to access to or correction or deletion of personal information Magnite holds about you. As explained in our Advertising Platform Privacy Policy, we do not process information that enables us to directly identify you as an individual. Instead, we collect certain digital identifiers that enable us to recognize your device or your browser (each, a “Digital Identifier”).
For that reason, in order for us to act on a request to access, correct, or delete personal information, we need you to provide us with your Digital Identifiers and certain other information, such as a screenshot of your Digital Identifier or certain information about your device or browsing behavior. For access requests, this is necessary to locate records we hold about your device or browser, and to help ensure that we only provide personal data to the person about whom such data relates. We use the information you provide when making the request only for the purpose of processing your data protection and privacy requests. We explain how to locate your Digital Identifier below. Once you locate your Digital Identifier, you can submit your request by emailing us at privacy@magnite.com or at dpo@magnite.com.
If you need help, you can also call us at +1.888.812.3839.
HOW TO LOCATE YOUR DIGITAL IDENTIFIERS
Web Browsing
As described in our Cookie Platform Policy, our advertising technology operates by using text files called “cookies” that are placed on your device. Some of these cookies include a Digital Identifier. To locate the Digital Identifiers Magnite may process, you can search through your cookies for the cookies named:
- “khaos” and “ruid” (set from the rubiconproject.com domain);
- “tvid”(set from the tremorhub.com domain);
- “ssid” and “sst” (set from the cdn.springserve.com domain)
- “ccuid” and “ccsid” (set from the nai-edge.ccgateway.net domain)
- “fsk_retargeting”(set from the freeskreen.com domain).
The text in each of these cookies is a separate Digital Identifier.
Please keep in mind that different cookies are placed on each browser you use. As a result, if you use multiple browsers (for example, Google Chrome and Mozilla Firefox), you will need to locate the above listed cookies for each one.
To find your cookie ID in most browsers (e.g., Google Chrome, Firefox, Edge or Safari), follow these steps:
1. Open the website where the cookie is set;
2. Open Developer Tools;
3. Press F12 or Ctrl+Shift+I (Windows) / Cmd+Option+I (Mac);
4. Go to the “Application” or “Storage” Tab in the Developer Tools;
5. In the sidebar, select “Cookies”, then click the website’s domain;
6. Browse the cookie list and look for names ‘khaos’, ruid’, ‘tvid’, ‘ssid’, ‘sst’ , ‘ccuid’, ‘ccsid’, or ‘fsk_retargeting’;
7. The value shown next to the relevant cookie name is your cookie identifier.
Mobile Devices and other Internet Connected Devices
Certain mobile devices (for example, mobile phones or tablets using the iOS or Android operating systems) generate a persistent “Advertising Identifier” per device, which, among other things, can be used by third parties, like Magnite, for purposes of providing you with targeted advertising.
On iOS devices, your Advertising Identifier may be referred to as an “IDFA,” or “ID for Advertising.” On Android devices, your Advertising Identifier may be referred to as an “Advertising ID.” Please follow instructions from your mobile device manufacturer on how to locate your specific Advertising Identifier.