This article describes an update to the top-level domain (TLD) list of Windows Internet Explorer 8, Windows Internet Explorer 9, and Internet Explorer 10. 

This update contains the following improvements:

  • Adds the following two-letter top-level domains and two-letter second-level domains to the TLD list:




  • Removes the "" domain from the TLD list.


  • Two-letter domain names (xx.yy) are considered as public domains by Internet Explorer, unless they belong to the TLD list. The TLD list contains exceptions for certain two-letter domain names that are considered as private.

  • The TLD list enables Internet Explorer to set cookies for the two-letter domain that are included.

More Information

Security update information

To install this update, install the most recent cumulative security update for Internet Explorer. To do this, go to the following Microsoft website:

  • This update was first included in the following security update:

    2792100 MS13-009: Cumulative Security Update for Internet Explorer: February 12, 2013

  • For more technical information about the most recent cumulative security update for Internet Explorer, go to the following Microsoft websites:


For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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