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Tips to make Private browsing mode even more private

Private browsing mode is a great privacy feature for browsers. This feature was first introduced in Apple Safari, then Firefox, Internet Explorer 8 and Google Chrome.

With private surfing, you can surf any website with out your activities being stored in the browser history. That is, all browsing history, temporary files and cookies will be removed upon closing your browser.

But unfortunately, an advanced user can still locate any web address that you’re recently visited very easily from the local DNS cache.

You can test this. After closing your browser, just type ipconfig /displaydns in command prompt (in Windows 7, right click Command prompt and Select Run as Administrator) and hit enter.

To clear all those details from your local DNS cache, just type ipconfig /flushdns in the command prompt and hit Enter.

Hope this will help you surf the Internet more privately.


  1. Thanks, quite useful. I heard about DNS Cache, but now I understood what it is.

  2. Hi,
    I use IE7 on Win XP Sp3 (thus without private browsing)and when i Type ipconfig /displaydns, i receive a message that DNS cache can't be showed... !?

  3. @ Anonymous,

    I don't know the exact reason. Run command prompt as an administrator.
    Or make sure that the DNS Client service is running and set to automatic on your XP SP3 by typing services.msc in the run box.

  4. Hi,
    Ccleaner can flush the DNS cache.
    To resolve the problem of Anonymous 1(I'm Anonymous 2)with XP, see here :


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