The "Do Not Track" Setting Doesn't Stop You from Being Tracked
Most browsers have a "Do Not Track" (DNT) setting that sends "a special signal to websites, analytics companies, ad networks, plug in providers, and other web services you encounter while browsing, to stop tracking your activity." Sounds good, right? Sadly, it’s not effective. That's because this Do Not Track setting is only a voluntary signal sent to websites, which websites don’t have to respect ?.
Nevertheless, a hefty portion of users across many browsers use the Do Not Track setting. While DNT is disabled by default in most major web browsers, in a survey we conducted of 503 U.S. adults in Nov 2018, 23.1% (±3.7) of respondents have consciously enabled the DNT setting on their desktop browsers. (Note: Apple is in the process of removing the DNT setting from Safari.)
We also looked at DNT usage on DuckDuckGo (across desktop and mobile browsers), finding that 24.4% of DuckDuckGo requests during a one day period came from browsers with the Do Not Track setting enabled. This is within the margin of error from the survey, thus lending more credibility to its results.
Unfortunately, tens of millions of Americans (and many more worldwide) who enable DNT don’t know that it's only sending a voluntary signal. Of the respondents who heard of and were at least "slightly familiar" with the Do Not Track setting, 44.4% (±7.3) of them were not aware of its true voluntary nature. Even among those who have consciously enabled DNT in their browser, 41.4% (±8.9) didn't know that it only sends a voluntary signal.
It can be alarming to realize that Do Not Track is about as foolproof as putting a sign on your front lawn that says “Please, don’t look into my house” while all of your blinds remain open. In fact, most major tech companies, including Google, Facebook, and Twitter, do not respect the Do Not Track setting when you visit and use their sites – a fact of which 77.3% (±3.6) of U.S. adults overall weren’t aware.
There is simply a huge discrepancy between the name of the setting and what it actually does. It’s inherently misleading. When educated about the true function and limitation of the DNT setting, 75.5% (±3.8) of U.S. adults say it’s "important" or "very important" that these companies "respect the Do Not Track signal when it is enabled." So, in shocking news, when people say they don’t want to be tracked, they really don’t want to be tracked.
As a matter of fact, 71.9% (±3.9) of U.S. adults "somewhat favor" or "strongly favor" a federal regulation requiring companies to respect the Do Not Track signal.
We agree and hope that governments will focus this year on efforts to enforce adherence to the Do Not Track setting when users enable it. As we've seen here and in our private browsing research, many people seek the most readily available (though often, unfortunately, ineffective) methods to protect their privacy.
Just like Private Browsing (a.k.a. "Incognito") Mode, the "Do Not Track" setting is an easily-discoverable option in most browsers, but it fails to effectively educate users on what exactly it does (or doesn't do), and falls well short of the privacy benefit users expect from it. Until such time that the Do Not Track setting lives up to its name, you can reclaim your privacy and block trackers right now by using the DuckDuckGo browser extension and mobile app.
Methodology
These results are based on the polling of a random sample of 503 American adults (18+) on November 29th, 2018 via SurveyMonkey's Audience platform, which ensures the demographic make-up of respondents is representative of the U.S. population. Survey respondents were paid and a confidence level of 95% was used for calculating the values above.
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