What is Google Double Dart Cookies Double Click DART Cookies Google Adsense

First we want to tell you that their are two things one is double click and second is DART cookies and jointly made the Double Click DART Cookies.

Double Click

DoubleClick is the ad technology foundation of Google to create, transact, and manage digital advertising for the world's buyers, creators and sellers. You can read more about DoubleClick at :-

http://www.google.com/doubleclick/

DART Cookies

The DoubleClick DART cookie is used by Google in the ads served on publisher websites displaying AdSense for content ads. When users visit an AdSense publisher’s website and either view or click on an ad, a cookie may be dropped on that end user’s browser. The data gathered from these cookies will be used to help AdSense publishers better serve and manage the ads on their site(s) and across the web. Users may opt out of the use of the DART cookie by visiting the Google ad and content network privacy policy."

A cookie is a snippet of text that is sent from a website’s servers and stored on a web browser. Like most websites and search engines, Google uses cookies in order to provide a better user experience and to serve relevant ads. 

Google uses the DoubleClick cookie on AdSense sites, partner sites and certain Google services to serve more relevant ads across the web and limit the number of times a given ad is shown to you. When you visit a website, view an ad, or click an ad supported by Google’s advertising services, we may set a cookie on your browser. This advertising cookie will appear in your browser as coming from the domain “doubleclick.net” or from the domain of the site you are visiting. 

When the cookie is set on your browser, it allows Google to gather information about your browser’s interaction with a given ad. This information gets recorded in a log that looks something like this: 

time: 06/Aug/2008 12:01:32
ad_placement_id: 105
ad_id: 1003
userid: 0000000000000001
client_ip: 123.45.67.89
referral_url: "http://youtube.com/categories"

The “time” field reflects the time the ad was displayed. The “ad placement id” and “ad id” identify the advertising campaign and the specific ad served. The “userid” is the display ad cookie that identifies the browser. The “client IP” reflects the user’s Internet Protocol (IP) address. A “referral URL” indicates the URL of the page where the ad was served. Our logs also record whether a user’s browser clicks or interacts with an ad.

This information helps Google deliver ads that are relevant to your interests, control the number of times you see a given ad, and measure the effectiveness of ad campaigns. Anyone who prefers not to see ads with this level of relevance can opt out. This opt-out will be specific only to the browser that you are using when you click the “Opt out” button.