Site to Zone Assignment List

This policy setting allows you to manage a list of sites that you want to associate with a particular security zone. These zone numbers have associated security settings that apply to all of the sites in the zone. Internet Explorer has 4 security zones numbered 1-4 and these are used by this policy setting to associate sites to zones. They are: (1) Intranet zone (2) Trusted Sites zone (3) Internet zone and (4) Restricted Sites zone. Security settings can be set for each of these zones through other policy settings and their default settings are: Trusted Sites zone (Low template) Intranet zone (Medium-Low template) Internet zone (Medium template) and Restricted Sites zone (High template). (The Local Machine zone and its locked down equivalent have special security settings that protect your local computer. )If you enable this policy setting you can enter a list of sites and their related zone numbers. The association of a site with a zone will ensure that the security settings for the specified zone are applied to the site.   For each entry that you add to the list enter the following information:Valuename – A host for an intranet site or a fully qualified domain name for other sites. The valuename may also include a specific protocol. For example if you enter http://www. contoso. com as the valuename other protocols are not affected.  If you enter just www. contoso. com then all protocols are affected for that site including http https ftp and so on. The site may also be expressed as an IP address (e. g. 127. 0. 0. 1) or range (e. g. 127. 0. 0. 1-10). To avoid creating conflicting policies do not include additional characters after the domain such as trailing slashes or URL path. For example policy settings for www. contoso. com and www. contoso. com/mail would be treated as the same policy setting by Internet Explorer and would therefore be in conflict. Value – A number indicating the zone with which this site should be associated for security settings. The Internet Explorer zones described above are 1-4. If you disable or do not configure this policy users may choose their own site-to-zone assignments.

Additional Information

  1. Registry path is:

    HKEY_CURRENT_USER -> Software -> Policies -> Microsoft -> Windows -> CurrentVersion -> Internet Settings # ListBox_Support_ZoneMapKey; HKEY_CURRENT_USER -> Software -> Policies -> Microsoft -> Windows -> CurrentVersion -> Internet Settings -> ZoneMapKey

  2. The Administrative Template path is:

    Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page


* Making mistakes while changing registry values can affect your system adversely. We recommend you to create a System Restore point before making registry manipulation. If you're new to Registry Editor, read this beginner's guide.
** To locate the registry and administrative template path, checkout beginner's guide.
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