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How Google uses your information for display advertising on partner websites, apps, and other services in the United States

When you use websites and apps (or similar online services like Connected TV), you may see image or video ads appear on the page you are visiting. This is called display advertising. These display ads keep many of these websites, apps and services free of charge.

Publishers use Google display advertising tools to show you ads in spaces available on their pages, sometimes known as “ad slots.” These tools enable publishers to connect with advertisers (or advertising partners working on the advertiser’s behalf) to:

  • provide these companies with information about the ad slot, page and/or content you are looking at,
  • provide advertising partners with information that enables them to:
    • show you personalized ads based on the information they may have about you,
    • learn your content preferences (such as the topics of websites and apps that you frequently visit or use) to show you ads that are personalized to be more relevant to you,
  • display the ad on the property you are visiting or using.

When you visit a property that uses Google display advertising tools, your web browser sends certain information to Google. This includes the URL of the page you’re visiting and your IP address. We may also set cookies on your browser or read cookies that are already there. Apps and connected TV devices that use Google display advertising services may also share information with Google, such as the name of the app or channel and a unique resettable identifier for advertising.

How do I control what information Google collects and discloses in display advertising?

When you visit a site, app or service that uses a Google display advertising tool on the page you are visiting, that property may show you a message that:

  • describes how it may use cookies, mobile IDs or other information stored on your device, including to show you personalized ads,
  • tells you about the “vendors” (companies) that can receive information about you and your device in order to help advertisers or advertising partners deliver relevant ads and measure their effectiveness, and
  • gives you controls over the information these vendors can receive about you and your device when serving personalized ads on the page you are visiting.

You can also control whether to allow personalized advertising and whether to allow advertising partners to use additional information from your browser or device to inform the selection of ads on sites and apps that partner with Google. If you turn off this control, bid request data sent to advertising partners will omit more specific details about your browser or device.

Learn more about who can receive information about you and your device.

How do I contact Google if I have questions?

If you have additional questions or requests related to your rights, you can contact Google. For other important data protection information, you can read our Privacy Policy.

More information on how Google display advertising tools process your personal data

Key terms

Advertisers

Advertisers are companies that own or operate properties that use Google display advertising tools to: show ads that promote their products and services, understand more about the people visiting their properties; measure the effectiveness of their ad campaigns; and improve the way they can show you ads on other properties.

Advertising Partners

These are companies working on the advertiser’s or publisher’s behalf. For example, they help advertisers buy ad slots on publisher properties. They also help publishers sell ad slots. Learn more about advertising partners.

Properties

Websites, apps or similar online services such as connected TV apps or channels.

Publishers

Publishers are companies that use Google display advertising tools to show you ads on properties they own or operate.

Categories of data processed by display advertising tools

The exact information Google collects about you and your device depends on choices you have made in your ad settings, and the browser or device you are using. It may also depend on the permissions you give in consent messages (sometimes known as “cookie banners”) that appear on some properties, or in the privacy controls offered by those services.

Consent messages may be presented to you when you visit a site, app or other service. The consent messages may let you choose whether companies (including Google) collect information about you and your device to learn more about your interests and, therefore, understand what type of ads would interest you. This information can be stored in a personalized advertising profile.

The exact information Google collects about you may also depend on instructions we receive from publishers and advertisers. For example, publishers may choose to send Google identifiers that are used for things like frequency capping (limiting how often you see the same ad), audience segmentation and targeting (showing ads that are relevant for you), ad rotation (ensuring you see different versions of an ad), and other audience-based ad delivery controls across devices.

The below tables provide more information on the categories of data that Google processes when display advertising tools are used.

Data received when a Publisher requests ads (“Ad Request Data”)

Data type Examples of information
Information about an ad space (slot) Ad slot identifier; ad slot dimensions; supported formats or types of media; location of the ad slot on the page
Content surrounding an ad space Web page URL; mobile or connected TV app ID; video content description
Publisher information Publisher identifier; advertising partners involved in selling ad space (supply chain)
Publisher-provided information Publisher-provided identifiers and signals
Information about your device or browser User-resettable advertising identifiers for a browser, based on cookies, or a device (depending on privacy settings and environment); device model and brand; browser brand and version; operating system brand and version
Information about a browsing or in-app session Identifier of the current web page view or in-app session; information relating to your session, such as session duration, whether you are interacting with the page, the prior number of clicks you made and referrer information
Network information IP address; HTTP and other network headers; information about your mobile network carrier; network state
Privacy settings Privacy settings you select in your browser or operating system; privacy signals a publisher sends to us, such as signals that apply protections for children
Supported advertising technologies Application programming interfaces (APIs) supported by your device; the publisher ad tag or the advertising software development kit (SDK) type and version
Third-party demand information Bid responses and bids received from a publisher’s direct advertising partners
Signals for detecting and preventing ad fraud and abuse Proprietary signals collected from a device or a web browser that help detect invalid activity (ad fraud)
Google Analytics information Session ID identifying your page view or in-app session
Experimental and debugging information Information indicating that whether the display advertising tools are functioning appropriately, such as ad load times, system health metrics and crash analytics and reports; information about active experiments

Data disclosed to advertising partners in the bid request (“bid request data”)

Data type Examples of information
Information about an ad space (slot) Ad slot identifier; the ad slot dimensions; supported formats or types of media; location of the ad slot on the page
Content surrounding the ad space Web page URL; mobile or connected TV app ID; video content description
Publisher information Publisher identifier; billing country; advertising partners involved in selling ad space (supply chain)
Publisher-provided information Publisher-provided identifiers and signals
Auction information Information provided to advertising partners relating to their own participation in buying ad slots
Publisher configuration settings Categories of ads disallowed by the publisher; information about direct deals between a publisher and an advertising partner; pricing rules set by the publisher
Information about your device or browser Approximate geolocation; IP address or truncated IP address; user-resettable advertising identifiers for a browser, based on cookies, or a device (personalized ads only); device model and brand; browser brand and version; operating system brand and version
Information about a browsing or in-app session Identifier of the current web page view or in-app session; other information relating to your session, such as whether you are interacting with the page, the prior number of clicks you made
Network information Network connection type (for example 3G/4G/5G/Wifi)
Privacy settings Privacy settings you select in your browser or operating system; privacy signals a publisher sends to us
Supported advertising technologies Application programming interfaces (APIs) supported by your device; the publisher ad tag or the software development kit (SDK) type and version
Technical, experimental and debugging information Set of active experiments specific to the advertising partner; bid response deadline; whether the request is a test request

Data disclosed to advertising partners regarding auction outcome

Data type Examples of information
Auction information Information relating to an advertising partner’s previous participation in an auction; information relating to the auction outcome, ad opportunity and bid request data

Data received when an ad is shown

Data type Examples of information
Information about the related ad request The ad request that resulted in selecting the ad; data about the selected ad
Information about your device or browser User-resettable advertising identifiers for a browser, based on cookies, or a device (personalized ads only); device model and brand; browser brand and version; operating system brand and version
Network information IP address; HTTP and other network headers
Signals for detecting and preventing ad fraud and abuse Proprietary signals that help detect invalid activity (ad fraud)
Interaction data Information on how you interact with an ad, such as whether you click on it; interactions with a video in an ad (such as whether it is muted or paused)
Information related to the rendering of the ad Information relating to the rendering of the ad, such as error messages; ad selection information; ad visibility information

Data received by Google from our advertising partners when they submit a bid for the ad slot

Data type Examples of information
Information about the ad The ad’s dimensions; the advertiser landing page if you click on the ad; code used to request the ad
Information about the bid for the ad slot The bid amount; the identity of the advertising partner winning the bid; information used for aggregated ad purchases reporting to advertising partners
Information for measuring ad delivery and performance and debugging technical integration Information about the ad, the ad and ad opportunity; information provided to application programing interfaces (APIs); bid response timescales
Experimental information Information related to whether certain privacy enhancing technologies or application programing interfaces (APIs) are used

Data disclosed to Publishers about ad transactions

Data type Examples of information
Information provided by the publisher about the request in relation to you and the ad slot Ad slot parameters; network information; publisher-provided rules relating to selling the ad slot; information about your browser and approximate location; publisher-provided identifiers (provided you have consented to ads personalization)
Information about the ad that was returned The buying advertising partner; information about direct deals between a publisher and an advertising partner; the detected advertiser; the publisher payment for the ad; the ad image
Information about the ad’s visibility and your interactions with it Whether the ad was shown on screen; whether you clicked on an ad; whether you muted an ad

Data Google uses to deliver the ads

Data type Examples of information
Network information IP address; HTTP and other network headers, including cookies
Information about an ad space (slot) Ad slot identifier; allowed ad width and height; supported formats or types of media; location of the ad slot on the page
Information about the ad Information used to decide which ad to show to you, such as information about the winning bid and interests that have been inferred from your interactions with different properties
Data type Examples of information
Information about your device or browser Approximate geolocation; browser and operating system type and version; device model and brand (as part of user-agent information)
Network information IP address; HTTP and other network headers
Pseudonymous cookie-based user identifiers User-resettable advertising identifiers for a browser, based on cookies
Information specific to an advertising partner Partner-provided cookie-based identifiers; redirect URL; advertising partner account identifier
Technical and debugging information Timestamp of when the cookie matching request started; information about any security protocols used for the request

Some of our advertising partners use a feature called “cookie matching.” This feature allows our advertising partners to match cookie-based identifiers that they associate with your browser with cookie-based identifiers used by the display advertising tools. These cookie-based identifiers are stored by display advertising tools in “match tables” and can be shared subsequently in bid requests with an advertising partner who stored a given identifier in those tables. Match tables may be used by our advertising partners for a number of reasons, including to personalize ads. For example, an advertising partner can use the cookie matching service to store a cookie-based identifier that they assigned to your browser when you visited one of their partner advertiser’s properties in match tables provided by display advertising tools, so that they can later receive their cookie-based identifier in bid requests from the display advertising tools.

Why and how we process your information

Google uses your information to provide the display advertising tools for the purposes described below:

Why and how your data is used What data is used

To display ads. We process your information so we know where to send ads that are served using the display advertising tools. For example, we process your IP address in order to send ads to the web page you’re reading on your device. We also use information about the ad slot to make sure the ad we serve is appropriate (such as to make sure it is the right size to fit into the ad slot on the page).

To select ads that you will see (whether or not the ad is personalized to you). We process data to determine the types of ads you see and which Advertising Partners are eligible to receive certain data. The data collected and disclosed will depend on the permissions you give in your ad settings, including in the banner that may be presented to you when you visit the publisher’s propert, or in the privacy controls offered by those services.

Ads are shown to you according to factors like the time of day, the topic of the property you are visiting or your approximate location. For example, you might see a restaurant ad for lunch specials because you’re reading a blog about lunch recipes. Or you might see an ad for a roofing business because you are reading an article about home repair.

We process data to limit the number of times you see the same ad.

Depending on the permissions you give, we will collect ad request data and disclose bid request data to our advertising partners, who use it to decide whether they want to make a bid for an ad slot on the publisher’s property. If one or more of our advertising partners decide to submit a bid for the relevant ad slot, Google processes the data we receive from them to determine the winning bid and show the relevant ad on the publisher’s property.

Cookie matching can be used to select the ads you see. For example, to limit the number of times you see the same ad.

To personalize ads. We use data to show personalized ads on publisher properties. Ads can be personalized based on your inferred interests. These inferences are drawn from your previous interactions with properties that were associated with the same identifiers for your browser or device (for example cookies or device advertising IDs), or other information provided by publishers, advertising partners or advertisers (for example publisher-provided identifiers and signals).

We process data to determine the types of ads you see and determine the advertising partners which are eligible to receive data for ads personalization. The data collected and disclosed will depend on the permissions you give, such as in the consent banner that may be presented to you when you visit the property, or in the privacy controls offered by those services, and your ad settings.

When showing personalized ads, we will collect ad request data and disclose bid request data to our advertising partners, who use it to decide whether and how they might bid for the ad slot on the publisher’s property, including selecting a personalized ad. If one or more of our advertising partners decide to submit a bid for the relevant ad slot, Google processes this information to determine the winning bid and show the relevant ad on the publisher’s property.

Advertising partners may use the data they collect to create an ads profile about you and show you personalized ads. For example, if you visited a property and looked at red shoes, an advertising partner’s profile might record that you are interested in red sneakers. If the advertising partner works on behalf of an advertiser that sells red trainers, they could then choose to serve you a personalized ad for red sneakers when you visit another property.

Cookie matching and information accessed from application programming interfaces (APIs) supported by your device can be used to show you personalized ads.

To measure the effectiveness of ads. We use data for analytics and measurement to understand how the display advertising tools are used. For example, we measure the performance of ads placed via the display advertising tools, including by analysing the performance of different types of ad formats. This includes collecting and analysing metrics such as viewability (whether an ad displayed on a page is visible to you), click through rates (how often people click on an ad) or conversions (for example whether you bought the product or service being advertised). These metrics can help publishers, advertisers and advertising partners understand how ads are performing. These metrics help advertisers, advertising partners and publishers improve campaign performance using automated and manual optimizations. They are also used for billing and payment purposes.

To do this, we:

  • we collect, store, aggregate, analyze and combine data, and may disclose data to our advertising partners, for this purpose.

We collect identifiers from your device and share them with publishers to help them understand the effectiveness of the ads they show on their properties. This allows publishers to more effectively analyze and optimize the performance of their ad slots.

Cookie matching and information accessed from application programming interfaces (APIs) supported by your device can be used to measure the effectiveness of ads.

Provide, maintain and improve the display advertising tools for publishers, advertising partners and advertisers, and understand how the display advertising tools are being used. We use data to make sure our display advertising tools are working properly and to provide services that meet the needs of publishers, advertisers and advertising partners that use these tools.

For example:

  • we provide publishers and advertising partners with reporting and forecasting tools and API integrations that disclose aggregated and non-aggregated data to:
    • help them understand how requests and ads are performing, and to troubleshoot potential issues,
    • allow them to estimate the volume of ad impression opportunities that may become available in future, and to optimize bidding integrations.
  • depending on publisher settings in the display advertising tools, we disclose event-level data to publishers. “Event-level” data is non-aggregated ad request data and data received when an ad is shown on a publisher’s property. Publishers only receive event-level data that relates to the requests from their properties and ads that are shown on their properties. Event-level data allows publishers to more effectively analyze and optimize the performance of their ad slots.
  • we utilize data obtained when an ad is displayed to invoice our advertising partners and remit payments to our publishers.
  • we collect a sample of bid request data, and share it with advertising partners to enable them to debug and troubleshoot issues that may arise in the display advertising tools.

To do this:

  • we collect, store, aggregate, combine and analyze data (including by using automated and manual techniques).
  • we disclose information to publishers and our advertising partners for this purpose (including event-level data to publishers). We apply appropriate safeguards that protect your privacy, such as by redacting identifiers (depending on user privacy settings or jurisdiction) and using encryption techniques.

Cookie matching can be used to improve the display advertising tools for publishers, advertising partners and advertisers.

Develop new services and features. We process data to develop new features that are useful for publishers, advertisers and advertising partners.

For example:

  • we analyze and conduct experiments using the data we receive when an ad is shown, such as by testing new ad formats or controls, based on how our advertising partners use the display advertising tools or based on technical issues that our advertising partners experience with the display advertising tools. Using this data, we can analyze which ad formats are in higher demand or are causing technical issues and develop new features for publishers and advertising partners (such as new ad formats or new controls available to publishers or advertising partners) as a result.

To do this, we:

  • collect, store, combine, aggregate and analyze data (including by using automated and manual techniques)
  • use this data to develop new services and features

Cookie matching can be used to develop new services and features.

Customize the display advertising tools, including by providing recommendations to publishers, advertisers and advertising partners. We process data to customize certain features in the display advertising tools that publishers, advertisers and advertisers partners use.

For example:

  • to optimize the kinds of ad slot bid requests sent to Advertising Partners, we analyze data received when ads are shown and use it to build customized features.
  • we provide publishers with customized insights and recommendations on how to optimize ad performance based on our analysis of data received when ads are shown.

To do this, we:

  • collect, store, aggregate, combine and analyze data (including using manual and automated techniques).
  • use this data to train machine learning models that allow us to customize features in the display advertising tools for publishers, advertisers and advertising partners.

Communicate with publishers, advertisers and the public. We use the data we process in providing the display advertising tools to inform marketing campaigns aimed at Publishers and Advertising Partners and to inform communication strategies about upcoming product changes.

For example:

  • we use the data we receive when an ad is shown to inform our advertising partners about the volumes of available ad slots on publishers’ properties.
  • we use this data to inform publishers about how they can optimize revenue from using the display advertising tools.

To do this, we:

  • collect, store, aggregate, combine and analyze data (including by automated and manual techniques).

Protect Google, our users and the public. We use data to improve the safety and reliability of the display advertising tools. This includes detecting, preventing and responding to fraud, abuse, security risks, and technical issues that could harm Google, our users, or the public.

For example:

  • we collect and analyze IP addresses, cookies and other information to protect against abuse that may occur on the display advertising tools. This abuse takes many forms, such as bots stealing money from advertisers by fraudulently clicking on ads.
  • we use data to detect, prevent or otherwise address non-compliance with Google’s policies and/or applicable law. This includes helping us detect and address issues such as spam, malware, and illegal content.

To do this, we:

  • collect, store and analyze data (including using manual and automated techniques), such as malware scanning.
  • disclose data to advertising partners who protect against fraud and abuse, with government authorities and with our external advisers (such as external legal counsel).

Cookie matching can be used to detect, prevent and respond to ad fraud. For example, to detect invalid traffic.

Using information from advertisers and our advertising partners

Advertisers and advertising partners can also use some of our display advertising tools to help them learn more about the people visiting their properties, to measure performance of ads they show using display advertising tools, and to improve the way they show ads to you in their advertising campaigns when you visit other properties.

Disclosing your information

When we provide the display advertising tools, we may disclose information with the below categories of recipients. The individual recipients of information is subject to the choices you make in the consent banner and the exact advertising partners that the publisher or advertiser choose to work with:

  • With publishers. We disclose data to publishers as part of features in the display advertising tools that are designed to help publishers understand how ads are performing on their properties.
  • Advertisers: We disclose data to advertisers as part of features in the display advertising tools that are designed to help advertisers understand how their ads are performing on sites, apps or services, and to help them improve their ad campaigns (including enabling advertisers to personalize ads that you see).
  • With advertising partners. Google partners with advertising partners working on the advertiser’s or publisher’s behalf, such as:
    • Advertising partners who facilitate the purchase of ad slots: These are companies working on the advertiser’s or publisher’s behalf that facilitate the purchase of the ad slots on publisher properties, including:
      • Ad networks: companies that aggregate and sell ad slots to advertisers.
      • Ad exchanges: virtual marketplaces where publishers and advertisers trade digital ad inventory.
      • Demand-side platforms: companies that help advertisers automate the process of buying ad slots on publisher properties in real time.
      • Supply-side platforms: companies that help publishers sell ad slots, fill them with ads, and receive revenue.
      • Data partners: companies that help other advertisers (and advertising partners working on their behalf) deliver greater insights about the purchase of ad slots in a way that meets advertisers’ campaign goals, and streamlines the way ad slots can be purchased.
    • Advertising partners who provide ad measurement services. These companies provide services to advertisers that measure how users click on and view ads.
    • Advertising partners who protect against fraud and abuse. For example, these companies protect against bots clicking on ads.
    • Advertising partners who deliver the ad to the ad slot. These companies deliver ads onto the page you are visiting.

    You can also control whether to allow personalized advertising and whether to allow advertising partners to use additional information from your browser or device to inform the selection of ads on properties that partner with Google. If you turn off this control, bid request data sent to advertising partners will omit more specific details about your browser or device.

    We also disclose data to our advertising partners to help them understand how ads are performing and to debug issues that our partners may experience when using the display advertising tools.

  • For legal reasons, including government authorities, courts or with our external advisors, as described further in our Privacy Policy.

Retaining your information

Your information that we collect when providing display advertising services is retained in accordance with the Retention periods for Google storing information not in the user’s Google Account section of our Google Ads User Data Retention Policy. However, retention periods may be longer or shorter for certain specific business and legal purposes, as described below:

  • Samples of the data disclosed to our advertising partners as part of our Authorized Buyers service, and which we and our advertising partners use to identify and debug issues that may occur with the product: are retained for up to 8 days.
  • Information that identifies you or your device that is necessary for spam and abuse prevention when showing ads (for all display advertising tools): is retained for up to 3 years from the time of collection.
  • Data necessary for financial record keeping purposes: is retained for up to 11 years from the time of collection.
  • If you have directly communicated with Google, through a customer support channel, feedback form or bug report, records of these communications: is retained for up to 7 years.
  • Information that is associated with cookies and user-resettable identifiers that are available for use at ad serving time in our Authorized Buyers service undergoes deletion from our data stores earlier than described in our Google Ads User Data Retention Policy if our systems do not see any requests for that identifier for 180 days.
  • Event-level data that is made available to publishers undergoes deletion from our data stores after a period of up to 60 days.