Twitter has implemented the Do Not Track header on its site, giving
users the option of telling the site that they do not want to be tracked
across other sites on the Web. The implementation is being done through
the DNT technology in the Firefox browser.
Firefox,
like other major browsers, allows users to enable the DNT option, which
uses an HTTP header to inform sites that they don't want sites to set
cookies that enable persistent tracking across the Web. Sites need to
choose to respect that particular header in order to make Do Not Track
work on their pages, and that's the change that Twitter has made.
Twitter officials said on Thursday that they had implemented Do Not Track.
"The
Federal Trade Commission's CTO, Ed Felten, just mentioned Twitter now
supports Do Not Track. We applaud the FTC's leadership on DNT," Twitter said in a statement.
Tracking
of users through the use of special cookies has been a highly
controversial practice, and advertisers have clashed with both privacy
advocates and government regulators on the use of tracking cookies. The
Federal Trade Commission and other organizations have supported the use
of Do Not Track as a way to give consumers the ability to opt out of
such tracking. Mozilla and Google have implemented it and Microsoft has
implemented a similar system in Internet Explorer.
"Industry has
made significant progress in implementing Do Not Track. The browser
vendors have developed tools that consumers can use to signal that they
do not want to be tracked; the DAA has developed its own icon-based tool
and has committed to honor the browser tools; and the W3C has made
substantial progress in creating an international standard for Do Not
Track. However, the work is not done. The Commission will work with
these groups to complete implementation of an easy-to use, persistent,
and effective Do Not Track system," the FTC said in a report on privacy in March.
Earlier this year Yahoo said it also would implement DNT on its sites.
Twitter on Thursday also updated its privacy policy to give users more information on the kind of data they collect and how users can change that.
"When you turn on DNT in your browser, we stop collecting the information that allows us to tailor Twitter based
on your recent visits to websites that have integrated our buttons or
widgets. Specifically, we remove from your browser the unique cookie
that links your browser to visits to websites in the Twitter ecosystem.
We then cannot provide tailored suggestions for you," Twitter said in an
explanation of the new support for Do Not Track
Courtesy by Dennis
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