Google Using DoubleClick Tracking Cookies

dstates sends news coming out of the letters the House Energy and Commerce Committee sent to a number of broadband and Internet companies about their policies and practices on user tracking. The committee has now made public 25 responses to its queries, and many companies, including Google, acknowledge using targeted-advertising technology without explicitly informing customers. The Committee is considering legislation to require explicitly informing the consumer of the type of information being gathered and any intent to use it for a different purpose, and a right to say "no" to the collection or use. The submitter notes that, while Google denies using deep packet inspection, if the traffic is a Google search or email to or from a Gmail account, Google does not need DPI to see the contents of the message. "The revelations came in response to a bipartisan inquiry of how more Internet companies have gathered data on customers. Edward J. Markey (D-Mass.) said 'Increasingly, there are no limits technologically as to what a company can do in terms of collecting information... and then selling it as a commodity to other providers.' Some companies like NebuAd have tested deep-packet inspection with some broadband providers Knology and Cable One. Google said that it had begun to use the DoubleClick ad-serving cookie that allow the tracking of Web surfing across different sites but said it was not using deep packet inspection. Google promotes the fact that its merger with DoubleClick provides advertisers 'insight into the number of people who have seen an ad campaign,' as well as 'how many users visited their sites after seeing an ad.' Microsoft and Yahoo acknowledge the use of behavioral targeting. Yahoo says it allows users to turn off targeted advertising on its Web sites; Microsoft has not yet responded to the committee."

Comments

Solution: Opera

[morgan_greywolf]

1. Turn off cookies globally.
2. Turn on cookies for sites that need it by hitting F12 and hitting 'Accept cookes only from the site I visit'.

Done. No more doubleclick cookies.

And slashdot uses doubleclick & google-analyti

[viking80]

And slashdot uses doubleclick & google-analytics as well.

Try disabling scripts with firefox "noScript". I think /. is more readable without allowing doubleclick.net & google-analytics.com

Opt out if you're worried

[SiliconEntity]

Google makes it easy to opt out of the doubleclick tracking cookie:

http://www.google.com/privacy_ads.html

"Anyone may opt out of the DoubleClick cookie (for both the Google content network and DoubleClick ad serving) at any time by clicking the button above."

Re: Opt out if you're worried

[rs232]

"Google makes it easy to opt out of the doubleclick tracking cookie"

Or you could put doubleclick.net & google-analytics.com in your hosts file and point the entries to 127.0.0.1 The advertisers still don't get it, intrusive adverts like on television don't work on the Internet

And Doubleclick doesn't need DPI either...

[nweaver]

You see, they don't just get the cookie, they also get the referrer field, so Google doesn't just get to see that it is "Nicholas Weaver" who's surfing the web, but can see that I am composing a reply to this article, because the referrer field in the doubleclick adds and google analytics on slashdot allow them to know this!

Solution: Options

[bunratty]

Or use Firefox and uncheck Accept third-party cookies in the Privacy Options. Or use Internet Explorer and block third-party cookies. Or use Safari and disallow third-party cookies. I don't see any reason to switch browsers just to access a basic feature.

Re:Solution: Options

[beckerist]

https://addons.mozilla.org/en-US/firefox/addon/5207

Yep

Re:Solution: about:config, not Options

[Kargan]

The developers of Firefox removed the option to disable third party cookies in Firefox 2.0 and later, stating the reason that it was not possible to block all third party cookies with this function.

There are basically two options to disable third party cookies in Firefox 2 versions.

The first would be to disable it manually by opening about:config from the address bar. Search for network.cookie.cookieBehavior and take a look a the value. If it is set to 0 you accept all cookies, 1 means you only accept cookies from the same server, 2 means you disable all cookies. Setting it to 1 has the same effect that the option in the old firefox browsers had: it disables third party cookies.

You could install an add-on as well that blocks third party cookies. One of the many extensions that does that is called CookieSafe. This one makes it possible to disable all cookies and allow them only for specific sites (whitelist).

Re:Solution: about:config, not Options

[bakuun]

They added the function again in firefox 3.0, so it is again possible to block third-party cookies without any extensions or other software than just a fresh firefox installation.

Re:And slashdot uses doubleclick & google-anal

[christefano]

Don't forget these, too:

127.0.0.1 www.google-analytics.com
127.0.0.1 ssl.google-analytics.com

While you're at it:

127.0.0.1 doubleclick.net
127.0.0.1 www.doubleclick.net
127.0.0.1 ad.doubleclick.net
127.0.0.1 ads.doubleclick.com
127.0.0.1 ads.doubleclick.net
127.0.0.1 ad2.doubleclick.net
127.0.0.1 ad3.doubleclick.net
127.0.0.1 ad4.doubleclick.net
127.0.0.1 ad5.doubleclick.net
127.0.0.1 ad6.doubleclick.net
127.0.0.1 ad7.doubleclick.net
127.0.0.1 ad8.doubleclick.net
127.0.0.1 ad9.doubleclick.net