The ga. By default, this library sets cookies on the domain specified in the document. This library sets the following cookies:. Read the Tracking Multiple Domains guide to learn how to configure ga. Historically, Google Analytics provided a JavaScript measurement library named urchin. When the newer ga.
For sites that have not completed the migration, urchin. Read the ga. For customers that are using Google Analytics' Display Advertiser features , such as remarketing , a third-party DoubleClick cookie is used in addition to the other cookies described in this document for just these features.
For websites using Google Analytics content experiments , the following cookies are used for these features in addition to the other cookies described in this document:. For websites using Optimize , the following cookies are used in addition to the other cookies described in this document:. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.
For details, see the Google Developers Site Policies. Guides Reference Support. Measuring common user interactions. Advanced Topics.
Official Plugins. Overview Google Analytics is a simple, easy-to-use tool that helps website owners measure how users interact with website content. If you have linked your Google Analytics and Google Ads accounts, Google Ads website conversion tags will read this cookie unless you opt-out. Learn more. Customization Read the gtag. In both cases, the libraries use first-party cookies to: Distinguish unique users Throttle the request rate When using the recommended JavaScript snippet cookies are set at the highest possible domain level.
The cookie is updated every time data is sent to Google Analytics. Set for interoperability with urchin. The cookie is created when the javascript library executes and is updated every time data is sent to Google Analytics.
After you visit that site, you could see an ad for mountain bikes on a different site that shows ads served by Google. If ad personalization is off, Google will not collect or use your information to create an ad profile or personalize the ads Google shows to you. You will still see ads, but they may not be as useful. Ads may still be based on the topic of the website or app you're looking at, your current search terms, or on your general location, but not on your interests, search history, or browsing history.
Your information can still be used for the other purposes mentioned above, such as to measure the effectiveness of advertising and protect against fraud and abuse. When you interact with a website or app that uses Google services, you may be asked to choose whether you want to see personalized ads from ad providers, including Google.
Regardless of your choice, Google will not personalize the ads you see if your ad personalization setting is off or your account is ineligible for personalized ads. You can see and control what information we use to show you ads by visiting your ad settings.
Here are some of the ways you can control the information that is shared by your device when you visit or interact with sites and apps that use Google services:. How Google uses information from sites or apps that use our services Many websites and apps use Google services to improve their content and keep it free. Ad personalization If ad personalization is turned on, Google will use your information to make your ads more useful for you. How you can control the information collected by Google on these sites and apps Here are some of the ways you can control the information that is shared by your device when you visit or interact with sites and apps that use Google services: Ad Settings helps you control ads you see on Google services such as Google Search or YouTube , or on non-Google websites and apps that use Google ad services.
You can also learn how ads are personalized, opt out of ad personalization, and block specific advertisers. You can browse by date and by topic, and delete part or all of your activity. Many websites and apps use Google Analytics to understand how visitors engage with their sites or apps. Learn more about Google Analytics and privacy. Incognito mode in Chrome allows you to browse the web without recording webpages and files in your browser or Account history unless you choose to sign in.
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