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Cookie policy

Introduction and scope

This Cookie Policy (the “Policy”) is designed to help you understand how and why Pew Research Center (the “Center”, “we” or “our”) uses cookies and other similar technologies (“Tracking Technologies ") on our family of websites, which includes and any other web pages linked to this Policy (collectively, the "Websites") to collect and develop data. We use tracking technologies to enable the operation of the Websites, to increase their functionality and efficiency, to enable the efficient operation of the Sites, to improve the ease of use of the Sites, to display advertisements on the Sites and elsewhere online, to collect statistics about how you use our Sites and to fulfill other legitimate purposes as described below.
To the extent that any information collected by Tracking Technologies, alone or in combination with other information, constitutes Personal Data as that term is defined in our Privacy Policy, both our Privacy Policy and this Policy will apply to the processing and to the transfer of such Personal Data.

Cookies and other tracking technologies

Cookies . A cookie is a small text file stored on your device (computer, phone, tablet, etc.) that contains information about your browser and your online activity. This information is often made up of a string of numbers and letters that uniquely identifies your device.
We can also use:
Local storage. Local storage allows our websites to store information locally on your device. Local storage may be used to improve your experience with our websites; for example, enabling features, remembering your preferences and speeding up the functionality of our websites.
Tracking pixels and web beacons. A tracking pixel, or web beacon, is a small, non-visible graphics file used for the purpose of tracking user behavior, web traffic and site conversions. A tracking pixel allows us to collect data about your use of our websites. Tracking pixels are also used to help inform advertisements on third-party platforms based on activity tracked by your browser or device, to Identify return traffic from third-party platforms such as social media applications and for third-party web analytics.
Other similar tracking technologies. We may also use other tracking technologies, such as IDs and mobile advertising tags for purposes similar to those described in this Policy. As noted above, we refer to all of these technologies collectively in this Policy as “Tracking Technologies.”

How we respond to Do Not Track signals

“Do Not Track” is an optional browser setting you can use to express your preferences regarding tracking by advertisers and other third parties. Please note, however, that our websites do not currently act in response to “Do Not Track” signals received from web browsers.

Give up

In addition to managing your cookie preferences (link at the top of this page) through our Websites, you can directly change your browser configuration to reject certain types of tracking technologies, including cookies. Please note, however, that if you refuse certain cookies, you may not be able to access and use the full functionality of our websites. For more information on how to manage cookies directly, please visit
You can also control your online behavioral advertising preferences and object to some marketing companies processing your data by visiting http://www. and Please note, however, that managing these preferences will not opt out of Internet advertising generally. You will still receive the same number of advertisements, but those advertisements will be less reflective of your interests, as indicated by your web browsing habits. Additionally, please note that any opt-out preferences you set using these tools may be revoked if you delete cookies after setting them.

Types of cookies

Types of cookies

We use session cookies and persistent cookies on our websites. Session cookies are deleted or removed when you close your browser. Persistent cookies may remain on your device after you close your browser, but they have an expiration date.
Some of the cookies placed on your device through our Websites are first-party cookies, meaning they are placed directly by us. Others are third-party cookies, meaning they are placed on your device through our websites by third parties such as YouTube. In other words, when you visit our websites, some third parties may place cookies on your device to collect information about your online activities over time and across different websites or online services. In the cookie tables below, we provide links to the applicable privacy policies for vendors who place third-party cookies on your device through our Websites, where possible. We invite you to refer to the privacy policies of these third parties to learn more about how they collect and process your personal data.

How we use tracking technologies on our websites

List of cookies

Strictly necessary cookies

These cookies are necessary for the website to function and cannot be deactivated in our systems. They are usually set only in response to actions you take that amount to a request for services, such as setting your privacy preferences, logging in, or filling out forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not work. These cookies do not store any personally identifiable information

Performance cookies

These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us know which pages are the most and least popular and see how visitors move around the site. All information collected by these cookies is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site and we will not be able to monitor its performance.

Targeting cookies

These cookies may be set through our site by our advertising partners. They can be used by these companies to build a profile of your interests and show you relevant adverts on other sites. They do not store personal information directly, but are based on the unique identification of your browser and internet device. If you do not allow these cookies, you will receive less targeted advertising.

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