You can control where non-captured static content is retrieved from during replay by using the Host/Port Remap dialog. These settings are stored in a profile.

In the Host/Port Remapping dialog, you can specify the translation from one host name to another or from one port number to another. You can also force all requests for pages or static content files to use HTTP or HTTPS, regardless of how the visitor requested the page or binary file. Remapping a host to a null value forces all binary files that are requested for that host to return a null. This null remapping may be necessary when the host name of a site on the Internet is not accessible from behind a firewall.

After remapping, the host names that are displayed in the status bar and in the viewable pages list are updated to reflect the remapped host.