
In the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.
If you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box. In the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites. In Internet Explorer, click Tools, click Internet Options, and then click the Security tab. If there are specific websites that you trust, you can place individual URLs or entire domains in the Trusted sites zone. This higher security level prevents users from running active content and downloading code to their computers.
That same user may not feel as confident about sites on the Internet, so they can assign a higher level of security to the entire Internet zone. For example, since a user may fully trust the sites on their institution's intranet, they would set the Local intranet zone to a low level of security. Users can uses these zones to easily provide the appropriate level of security for the various types of Web content that they are likely to encounter. Internet Explorer includes five predefined zones: